{"id":84729,"date":"2025-02-28T14:02:36","date_gmt":"2025-02-28T07:02:36","guid":{"rendered":"https:\/\/itviec.com\/blog\/?p=84729"},"modified":"2025-04-26T16:52:36","modified_gmt":"2025-04-26T09:52:36","slug":"cau-hoi-phong-van-vuejs","status":"publish","type":"post","link":"https:\/\/itviec.com\/blog\/cau-hoi-phong-van-vuejs\/","title":{"rendered":"Top 30+ c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n VueJS th\u01b0\u1eddng g\u1eb7p"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed9i dung b\u00e0i vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/itviec.com\/blog\/cau-hoi-phong-van-vuejs\/#Vuejs_la_gi\" >Vuejs l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/itviec.com\/blog\/cau-hoi-phong-van-vuejs\/#Ung_dung_cua_Vuejs_trong_cong_viec\" >\u1ee8ng d\u1ee5ng c\u1ee7a Vuejs trong c\u00f4ng vi\u1ec7c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/itviec.com\/blog\/cau-hoi-phong-van-vuejs\/#Cau_hoi_phong_van_Vuejs_cho_Fresher_hoac_Junior_Developer\" >C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Vuejs cho Fresher ho\u1eb7c Junior Developer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/itviec.com\/blog\/cau-hoi-phong-van-vuejs\/#Cau_hoi_phong_van_Vuejs_cho_Middle_Developer\" >C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Vuejs cho Middle Developer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/itviec.com\/blog\/cau-hoi-phong-van-vuejs\/#Cau_hoi_phong_van_Vuejs_xu_ly_tinh_huong_thuc_te\" >C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Vuejs x\u1eed l\u00fd t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/itviec.com\/blog\/cau-hoi-phong-van-vuejs\/#Tong_ket_cau_hoi_phong_van_VueJS\" >T\u1ed5ng k\u1ebft c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n VueJS<\/a><\/li><\/ul><\/nav><\/div>\n<p><em><strong>Vuejs l\u00e0 m\u1ed9t trong nh\u1eefng framework JavaScript ph\u1ed5 bi\u1ebfn gi\u00fap ph\u00e1t tri\u1ec3n giao di\u1ec7n web nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3. C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Vuejs \u0111i k\u00e8m c\u00e2u tr\u1ea3 l\u1eddi chi ti\u1ebft s\u1ebd \u0111em \u0111\u1ebfn g\u00f3c nh\u00ecn to\u00e0n di\u1ec7n cho b\u1ea1n, \u0111\u1ed3ng th\u1eddi gi\u00fap b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c s\u1ef1 chu\u1ea9n b\u1ecb t\u1ed1t h\u01a1n cho bu\u1ed5i ph\u1ecfng v\u1ea5n ti\u1ebfp theo.<\/strong><\/em><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ecdc b\u00e0i vi\u1ebft sau \u0111\u00e2y \u0111\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3i \u0111\u00e1p chi ti\u1ebft v\u1ec1:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Vuejs m\u1ee9c \u0111\u1ed9 c\u01a1 b\u1ea3n.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Vuejs n\u00e2ng cao d\u00e0nh cho Middle ho\u1eb7c Senior Developer.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Vuejs x\u1eed l\u00fd t\u00ecnh hu\u1ed1ng.\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Vuejs_la_gi\"><\/span><b>Vuejs l\u00e0 g\u00ec?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Vue.js l\u00e0 m\u1ed9t framework JavaScript \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 x\u00e2y d\u1ef1ng giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng v\u00e0 \u1ee9ng d\u1ee5ng web \u0111\u01a1n trang (SPA \u2013 Single Page Application). V\u1edbi c\u00fa ph\u00e1p d\u1ec5 hi\u1ec3u, kh\u1ea3 n\u0103ng t\u00e1i s\u1eed d\u1ee5ng component v\u00e0 h\u1ec7 sinh th\u00e1i phong ph\u00fa, Vue.js gi\u00fap l\u1eadp tr\u00ecnh vi\u00ean ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Kh\u00e1c v\u1edbi c\u00e1c framework monolithic th\u00ec Vuejs \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh \u0111\u1ec3 l\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng t\u1eebng b\u01b0\u1edbc. Th\u01b0 vi\u1ec7n c\u1ed1t l\u00f5i ch\u1ec9 t\u1eadp trung v\u00e0o view (view layer) gi\u00fap d\u1ec5 d\u00e0ng h\u1ecdc v\u00e0 t\u00edch h\u1ee3p nhi\u1ec1u th\u01b0 vi\u1ec7n ho\u1eb7c d\u1ef1 \u00e1n kh\u00e1c nhau.\u00a0<\/span><\/p>\n<blockquote><p><i><span style=\"font-weight: 400;\">Xem th\u00eam: <\/span><\/i><strong><a href=\"https:\/\/itviec.com\/blog\/vuejs-la-gi\/\" target=\"_blank\" rel=\"noopener\"><i>VueJS l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn \u1ee9ng d\u1ee5ng hi\u1ec7u qu\u1ea3 Vue.js trong l\u1eadp tr\u00ecnh<\/i><\/a><\/strong><\/p><\/blockquote>\n<p><span style=\"font-weight: 400;\">H\u1ec7 sinh th\u00e1i c\u1ee7a Vue.js c\u0169ng r\u1ea5t l\u1edbn. B\u1ed9 c\u00f4ng c\u1ee5 (tooling) v\u00e0 libraries c\u1ee7a Vue.js c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng \u0111\u1ea7y \u0111\u1ee7 c\u00e1c nhu c\u1ea7u l\u1eadp tr\u00ecnh c\u01a1 b\u1ea3n:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Vue.js official CLI:<\/b><span style=\"font-weight: 400;\"> Giao di\u1ec7n d\u00f2ng l\u1ec7nh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t tri\u1ec3n v\u00e0 c\u00e0i \u0111\u1eb7t c\u00e1c th\u01b0 vi\u1ec7n c\u1ed1t l\u00f5i c\u1ee7a framework Vue, c\u0169ng nh\u01b0 c\u00e1c plugin c\u1ee7a b\u00ean th\u1ee9 ba. Hi\u1ec7n nay Vite \u0111ang \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng thay th\u1ebf cho Vue CLI.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Development Tool (C\u00f4ng c\u1ee5 ph\u00e1t tri\u1ec3n): <\/b><span style=\"font-weight: 400;\">C\u00e1c c\u00f4ng c\u1ee5 ph\u00e1t tri\u1ec3n tr\u00ecnh duy\u1ec7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 g\u1ee1 l\u1ed7i tr\u00ean c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1eb1ng Vue.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Vue Loader:<\/b><span style=\"font-weight: 400;\"> B\u1ed9 t\u1ea3i ch\u00ednh th\u1ee9c cho g\u00f3i web<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Vue Router: <\/b><span style=\"font-weight: 400;\">\u0110\u1ecbnh tuy\u1ebfn v\u00e0 \u00e1nh x\u1ea1 th\u00e0nh ph\u1ea7n (mapping component)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Vuex (ho\u1eb7c Pinia trong phi\u00ean b\u1ea3n m\u1edbi):<\/b><span style=\"font-weight: 400;\">\u00a0\u0110\u1ec3 qu\u1ea3n l\u00fd state<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Vue Test Utils:<\/b><span style=\"font-weight: 400;\"> Cho unit testing<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Ung_dung_cua_Vuejs_trong_cong_viec\"><\/span><b>\u1ee8ng d\u1ee5ng c\u1ee7a Vuejs trong c\u00f4ng vi\u1ec7c<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Vue.js c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u v\u1ecb tr\u00ed c\u00f4ng vi\u1ec7c kh\u00e1c nhau, bao g\u1ed3m:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/itviec.com\/blog\/front-end-developer-la-gi\/\" target=\"_blank\" rel=\"noopener\"><b>Front-end Developer<\/b><\/a><b>:<\/b><span style=\"font-weight: 400;\"> X\u00e2y d\u1ef1ng giao di\u1ec7n web \u0111\u1ed9ng, t\u1ed1i \u01b0u tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b><a href=\"https:\/\/itviec.com\/blog\/3-loi-ich-cho-su-nghiep-khi-lam-full-stack-developer-2\/\" target=\"_blank\" rel=\"noopener\">Full-stack Developer<\/a>: <\/b><span style=\"font-weight: 400;\">K\u1ebft h\u1ee3p Vue.js v\u1edbi c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh back-end nh\u01b0 Node.js, Laravel,&#8230; \u0111\u1ec3 ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng ho\u00e0n ch\u1ec9nh.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>UI\/UX Developer:<\/b><span style=\"font-weight: 400;\"> T\u1ea1o giao di\u1ec7n tr\u1ef1c quan, d\u1ec5 s\u1eed d\u1ee5ng v\u1edbi c\u00e1c th\u01b0 vi\u1ec7n Vue UI nh\u01b0 Vuetify, Quasar, PrimeVue, Tailwind UI ho\u1eb7c Element UI.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">B\u00ean c\u1ea1nh vi\u1ec7c th\u00e0nh th\u1ea1o Vue.js, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3\u00a0 h\u1ecdc th\u00eam c\u00e1c k\u1ef9 n\u0103ng kh\u00e1c \u0111\u1ec3 n\u00e2ng cao c\u01a1 h\u1ed9i ngh\u1ec1 nghi\u1ec7p c\u1ee7a b\u1ea3n th\u00e2n nh\u01b0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/itviec.com\/blog\/javascript-la-gi\/\" target=\"_blank\" rel=\"noopener\"><b>JavaScript<\/b><\/a><b>, <\/b><a href=\"https:\/\/itviec.com\/blog\/css-la-gi\/\" target=\"_blank\" rel=\"noopener\"><b>CSS<\/b><\/a><b> v\u00e0 <\/b><a href=\"https:\/\/itviec.com\/blog\/html-la-gi\/\" target=\"_blank\" rel=\"noopener\"><b>HTML<\/b><\/a><span style=\"font-weight: 400;\">: H\u1ed7 tr\u1ee3 x\u00e2y d\u1ef1ng trang web.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Vuex ho\u1eb7c Pinia:<\/b><span style=\"font-weight: 400;\"> Qu\u1ea3n l\u00fd state (tr\u1ea1ng th\u00e1i) \u1ee9ng d\u1ee5ng m\u1ed9t c\u00e1ch t\u1ed1i \u01b0u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Testing:<\/b><span style=\"font-weight: 400;\"> Ki\u1ec3m th\u1eed \u1ee9ng d\u1ee5ng Vue.js \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cau_hoi_phong_van_Vuejs_cho_Fresher_hoac_Junior_Developer\"><\/span><b>C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Vuejs cho Fresher ho\u1eb7c Junior Developer<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>\u1ee8ng d\u1ee5ng m\u1ed9t trang (Single-Page Application) trong Vuejs l\u00e0 g\u00ec?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u1ee8ng d\u1ee5ng m\u1ed9t trang (Single-Page Application &#8211; SPA) l\u00e0 \u1ee9ng d\u1ee5ng ho\u1ea1t \u0111\u1ed9ng trong m\u1ed9t trang web duy nh\u1ea5t, t\u1ea5t c\u1ea3 c\u00e1c trang \u0111\u01b0\u1ee3c t\u1ea3i m\u1ed9t l\u1ea7n v\u00e0 n\u1ed9i dung \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n t\u1ea3i l\u1ea1i to\u00e0n b\u1ed9 trang. Khi s\u1eed d\u1ee5ng SPA v\u1edbi c\u00e1c t\u01b0\u01a1ng t\u00e1c ho\u1eb7c y\u00eau c\u1ea7u, n\u1ed9i dung trang c\u1ee7a DOM s\u1ebd \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt t\u1ef1 \u0111\u1ed9ng b\u1eb1ng c\u00e1ch g\u1eedi ho\u1eb7c th\u1ef1c thi c\u00e1c y\u00eau c\u1ea7u m\u1ed9t c\u00e1ch kh\u00f4ng \u0111\u1ed3ng b\u1ed9.\u00a0<\/span><\/p>\n<h3><b>B\u1ea1n hi\u1ec3u g\u00ec v\u1ec1 Vue Instance? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u1ea1o \u0111\u01b0\u1ee3c m\u1ed9t Vue Instance?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Vue Instance l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ed1t l\u00f5i trong Vue.js, \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t ViewModel trong m\u00f4 h\u00ecnh MVVM, gi\u00fap li\u00ean k\u1ebft gi\u1eefa d\u1eef li\u1ec7u v\u00e0 giao di\u1ec7n. Vue Instance ch\u1ecbu tr\u00e1ch nhi\u1ec7m t\u1ea1o v\u00e0 qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng th\u00e0nh ph\u1ea7n ph\u00e2n c\u1ea5p, c\u0169ng nh\u01b0 x\u1eed l\u00fd d\u1eef li\u1ec7u, qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i, s\u1ef1 ki\u1ec7n hay v\u00f2ng \u0111\u1eddi (life cycle).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00e1ch t\u1ea1o m\u1ed9t Vue Instance nh\u01b0 sau<\/span><b> trong Vue 2<\/b><span style=\"font-weight: 400;\">:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">var app = new Vue({<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0el: '#app',<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0data: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0message: 'Hello Vue!'<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">})<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Nh\u01b0ng c\u00e1ch t\u1ea1o Vue Instance <\/span><b>trong Vue 3 <\/b><span style=\"font-weight: 400;\">l\u1ea1i c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t nh\u01b0 sau:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">const app = createApp({<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0data() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0return {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0message: 'Hello Vue!'<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">})<\/span>\r\n<span style=\"font-weight: 400;\">app.mount('#app')<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">\u1ede v\u00ed d\u1ee5 tr\u00ean, m\u1ed9t Vue Instance \u0111\u01b0\u1ee3c t\u1ea1o v\u00e0 truy\u1ec1n v\u00e0o \u0111\u1ed1i t\u01b0\u1ee3ng t\u00f9y ch\u1ecdn theo 2 thu\u1ed9c t\u00ednh:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>el: <\/b><span style=\"font-weight: 400;\">Ch\u1ec9 \u0111\u1ecbnh ph\u1ea7n t\u1eed DOM m\u00e0 Vue Instance s\u1ebd \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>data: <\/b><span style=\"font-weight: 400;\">Ch\u1ec9 \u0111\u1ecbnh \u0111\u1ed1i t\u01b0\u1ee3ng d\u1eef li\u1ec7u ch\u1ee9a tr\u1ea1ng th\u00e1i c\u1ee7a \u1ee9ng d\u1ee5ng.\u00a0<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Sau khi Vue Instance \u0111\u01b0\u1ee3c t\u1ea1o, n\u00f3 s\u1ebd qu\u1ea3n l\u00fd ph\u1ea7n t\u1eed DOM \u0111\u00e3 ch\u1ec9 \u0111\u1ecbnh v\u00e0 thay th\u1ebf n\u1ed9i dung c\u1ee7a ph\u1ea7n t\u1eed b\u1eb1ng m\u1eabu v\u00e0 r\u00e0ng bu\u1ed9c d\u1eef li\u1ec7u trong Vue Instance.\u00a0<\/span><\/p>\n<h3><b>Component trong Vue.js l\u00e0 g\u00ec? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u1ea1o m\u1ed9t component?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Component l\u00e0 m\u1ed9t ph\u1ea7n t\u1eed c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng trong Vue.js, m\u00f4-\u0111un, m\u1eabu, ki\u1ec3u hay h\u00e0nh vi c\u1ee7a m\u1ed9t t\u00ednh n\u0103ng ho\u1eb7c th\u00e0nh ph\u1ea7n UI c\u1ee5 th\u1ec3 trong \u1ee9ng d\u1ee5ng. M\u1ed9t component c\u00f3 th\u1ec3 bao g\u1ed3m nhi\u1ec1u component kh\u00e1c nhau v\u00e0 giao ti\u1ebfp v\u1edbi component qua c\u00e1c props ho\u1eb7c s\u1ef1 ki\u1ec7n.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 t\u1ea1o m\u1ed9t th\u00e0nh ph\u1ea7n trong \u2018Vue.js\u2019, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng th\u1ee9c \u2018Vue.component()\u2019<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">Vue.component('my-component', {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0template: '&lt;div&gt;{{ message }}&lt;\/div&gt;',<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0data: function () {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0return {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0message: 'Hello from my component!'<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">})<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">C\u00fa ph\u00e1p t\u1ea1o component trong Vue 3 th\u01b0\u1eddng d\u00f9ng Single File Components (.vue)<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">&lt;template&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0&lt;div&gt;{{ message }}&lt;\/div&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/template&gt;\r\n<\/span>\r\n<span style=\"font-weight: 400;\">&lt;script&gt;<\/span>\r\n<span style=\"font-weight: 400;\">export default {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0data() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0return {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0message: 'Hello from my component!'<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/script&gt;<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">\u1ede v\u00ed d\u1ee5 tr\u00ean, \u0111\u1ecbnh ngh\u0129a m\u1ed9t component c\u00f3 t\u00ean l\u00e0 \u201cmy-component\u201d v\u00e0 ch\u1ec9 \u0111\u1ecbnh c\u00e1c m\u1eabu t\u00f9y ch\u1ecdn m\u1eabu c\u0169ng nh\u01b0 d\u1eef li\u1ec7u c\u1ee7a th\u00e0nh ph\u1ea7n \u0111\u00f3. T\u00f9y ch\u1ecdn m\u1eabu \u0111\u1ecbnh ngh\u0129a HTML s\u1ebd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb khi component \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00e0 t\u00f9y ch\u1ecdn d\u1eef li\u1ec7u \u0111\u1ecbnh ngh\u0129a tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u c\u1ee7a d\u1eef li\u1ec7u component.\u00a0<\/span><\/p>\n<h3><b>Gi\u1ea3i th\u00edch v\u1ec1 mixins trong Vuejs v\u1edbi v\u00ed d\u1ee5. \u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a Mixins?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Trong Vuejs, Mixins l\u00e0 m\u1ed9t c\u00e1ch \u0111\u1ec3 t\u00e1i s\u1eed d\u1ee5ng m\u00e3 trong nhi\u1ec1u component kh\u00e1c nhau. V\u1ec1 c\u01a1 b\u1ea3n, Mixin l\u00e0 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 c\u00e1c t\u00f9y ch\u1ecdn component c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u1ee3p nh\u1ea5t v\u1edbi c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a component kh\u00e1c. Khi m\u1ed9t component s\u1eed d\u1ee5ng mixin, n\u00f3 s\u1ebd k\u1ebf th\u1eeba t\u1ea5t c\u1ea3 c\u00e1c thu\u1ed9c t\u00ednh v\u00e0 ph\u01b0\u01a1ng th\u1ee9c \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong mixin.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">\/\/ \u0110\u1ecbnh ngh\u0129a mixin v\u1edbi m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c chung<\/span>\r\n<span style=\"font-weight: 400;\">const greetingMixin = {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0methods: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0greet() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0console.log(\"Hello, world!\");<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">};<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ \u0110\u1ecbnh ngh\u0129a component s\u1eed d\u1ee5ng mixin<\/span>\r\n<span style=\"font-weight: 400;\">Vue.component(\"my-component\", {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0mixins: [greetingMixin],<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0template: `<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;div&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0&lt;h1&gt;My Component&lt;\/h1&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0&lt;button @click=\"greet()\"&gt;Greet&lt;\/button&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;\/div&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0`<\/span>\r\n<span style=\"font-weight: 400;\">});<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ T\u1ea1o m\u1ed9t th\u1ec3 hi\u1ec7n Vue v\u1edbi component<\/span>\r\n<span style=\"font-weight: 400;\">new Vue({<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0el: \"#app\"<\/span>\r\n<span style=\"font-weight: 400;\">});<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">\u1ede v\u00ed d\u1ee5 tr\u00ean, t\u1ea1o m\u1ed9t mixin c\u00f3 t\u00ean &#8211; &#8216;greetingMixin&#8217; v\u00e0 trong component, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng n\u00f3 v\u1edbi (mixin : [ ]). T\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf nhi\u1ec1u component gi\u00fap l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng l\u1eb7p l\u1ea1i c\u1ee7a m\u00e3.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Mixin c\u00f3 m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh, nh\u01b0ng b\u00ean c\u1ea1nh \u0111\u00f3 c\u0169ng c\u00f2n m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m. M\u1ed9t s\u1ed1 \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u0169ng nh\u01b0 h\u1ea1n ch\u1ebf c\u1ee7a Vuejs bao g\u1ed3m:<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>\u01afu \u0111i\u1ec3m<\/b><\/td>\n<td><b>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Kh\u1ea3 n\u0103ng t\u00e1i s\u1eed d\u1ee5ng m\u00e3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 x\u1ea3y ra xung \u0111\u1ed9t v\u1ec1 t\u00ean<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">L\u00e0m gi\u1ea3m s\u1ef1 tr\u00f9ng l\u1eb7p c\u1ee7a m\u00e3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c hi\u1ec3u h\u00e0nh vi c\u1ee7a m\u1ed9t component kh\u00f3 kh\u0103n h\u01a1n<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">M\u00e3 c\u00f3 b\u1ed1 c\u1ee5c r\u00f5 r\u00e0ng v\u00e0 t\u00ednh m\u00f4-\u0111un<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u00e0nh vi kh\u00f4ng mong mu\u1ed1n n\u1ebfu s\u1eed d\u1ee5ng kh\u00f4ng \u0111\u00fang c\u00e1ch<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">B\u1ea3o tr\u00ec v\u00e0 c\u1eadp nh\u1eadt m\u00e3 d\u1ec5 d\u00e0ng h\u01a1n<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a m\u00e3 n\u1ebfu s\u1eed d\u1ee5ng qu\u00e1 nhi\u1ec1u mixin<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 m\u1edf r\u1ed9ng v\u00e0 t\u00f9y ch\u1ec9nh ch\u1ee9c n\u0103ng hi\u1ec7n c\u00f3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1ch ti\u1ebfp c\u1eadn t\u1ed1t nh\u1ea5t cho m\u1ecdi tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><b>B\u1ea1n hi\u1ec3u g\u00ec v\u1ec1 Virtual DOM trong Vuejs?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Virtual DOM (VDOM) trong Vue.js l\u00e0 m\u1ed9t b\u1ea3n sao nh\u1eb9 c\u1ee7a DOM th\u1eadt, gi\u00fap Vuejs c\u1eadp nh\u1eadt giao di\u1ec7n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 h\u01a1n. Khi m\u1ed9t component Vue.js \u0111\u01b0\u1ee3c t\u1ea1o ho\u1eb7c c\u1eadp nh\u1eadt, n\u00f3 s\u1ebd t\u1ea1o m\u1ed9t bi\u1ec3u di\u1ec5n DOM \u1ea3o v\u1ec1 tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i c\u1ee7a n\u00f3, sau \u0111\u00f3 \u0111\u01b0\u1ee3c so s\u00e1nh v\u1edbi DOM \u1ea3o tr\u01b0\u1edbc \u0111\u00f3 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u1eadp h\u1ee3p c\u00e1c thay \u0111\u1ed5i t\u1ed1i thi\u1ec3u c\u1ea7n th\u1ef1c hi\u1ec7n \u0111\u1ed1i v\u1edbi DOM th\u1ef1c t\u1ebf \u0111\u1ec3 ph\u1ea3n \u00e1nh tr\u1ea1ng th\u00e1i \u0111\u00e3 c\u1eadp nh\u1eadt.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">VDOM \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t k\u1ef9 thu\u1eadt t\u1ed1i \u01b0u h\u00f3a \u0111\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ed1 l\u01b0\u1ee3ng thao t\u00e1c tr\u1ef1c ti\u1ebfp \u0111\u1ed1i v\u1edbi DOM, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng v\u1ec1 m\u1eb7t hi\u1ec7u su\u1ea5t. Thay v\u00ec c\u1eadp nh\u1eadt DOM th\u1ef1c t\u1ebf m\u1ed7i khi tr\u1ea1ng th\u00e1i c\u1ee7a m\u1ed9t component thay \u0111\u1ed5i, Vue.js s\u1eed d\u1ee5ng VDOM \u0111\u1ec3 t\u00ednh to\u00e1n c\u00e1ch hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 c\u1eadp nh\u1eadt DOM v\u00e0 sau \u0111\u00f3 \u00e1p d\u1ee5ng nh\u1eefng thay \u0111\u1ed5i \u0111\u00f3 theo c\u00e1ch h\u00e0ng lo\u1ea1t. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t \u0111\u00e1ng k\u1ec3, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c \u1ee9ng d\u1ee5ng l\u1edbn v\u00e0 ph\u1ee9c t\u1ea1p.<\/span><\/p>\n<h3><b>Gi\u1ea3i th\u00edch v\u1ec1 c\u00e1c v\u00f2ng \u0111\u1eddi hook trong Vuejs<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00e1c hook v\u00f2ng \u0111\u1eddi (life cycle hook) trong Vue.js l\u00e0 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c \u0111\u1eb7c bi\u1ec7t \u0111\u01b0\u1ee3c g\u1ecdi \u1edf nhi\u1ec1u giai \u0111o\u1ea1n kh\u00e1c nhau trong v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t th\u00e0nh ph\u1ea7n (component). C\u00e1c hook n\u00e0y cho ph\u00e9p th\u1ef1c thi m\u00e3 t\u1ea1i c\u00e1c \u0111i\u1ec3m c\u1ee5 th\u1ec3 trong v\u00f2ng \u0111\u1eddi, ch\u1eb3ng h\u1ea1n nh\u01b0 tr\u01b0\u1edbc khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c t\u1ea1o tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c g\u1eafn k\u1ebft, sau khi \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt v\u00e0 tr\u01b0\u1edbc khi b\u1ecb h\u1ee7y.<\/span><\/p>\n<blockquote><p><i><span style=\"font-weight: 400;\">Xem th\u00eam: <\/span><\/i><strong><a href=\"https:\/\/itviec.com\/blog\/lifecycle-vuejs-la-gi\/\" target=\"_blank\" rel=\"noopener\"><i>Chi ti\u1ebft c\u00e1ch d\u00f9ng Lifecycle Hooks trong VueJS<\/i><\/a><\/strong><\/p><\/blockquote>\n<p><span style=\"font-weight: 400;\">M\u1ed9t s\u1ed1 hook ph\u1ed5 bi\u1ebfn th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng trong Vuejs c\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn nh\u01b0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>beforeCreate: <\/b><span style=\"font-weight: 400;\">Hook n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi tr\u01b0\u1edbc khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c t\u1ea1o, gi\u00fap kh\u1edfi t\u1ea1o d\u1eef li\u1ec7u v\u00e0 thi\u1ebft l\u1eadp tr\u00ecnh l\u1eafng nghe s\u1ef1 ki\u1ec7n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>created:<\/b><span style=\"font-weight: 400;\"> \u0110\u01b0\u1ee3c g\u1ecdi sau khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c t\u1ea1o gi\u00fap th\u1ef1c hi\u1ec7n c\u00e1c thi\u1ebft l\u1eadp ban \u0111\u1ea7u nh\u01b0 t\u00ecm n\u1ea1p d\u1eef li\u1ec7u t\u1eeb API.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>beforeMount:<\/b><span style=\"font-weight: 400;\"> Hook \u0111\u01b0\u1ee3c g\u1ecdi tr\u01b0\u1edbc khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c g\u1eafn k\u1ebft v\u00e0o DOM gi\u00fap th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 thao t\u00e1c DOM c\u1ea7n thi\u1ebft n\u00e0o tr\u01b0\u1edbc khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>mounted: <\/b><span style=\"font-weight: 400;\">\u0110\u01b0\u1ee3c g\u1ecdi sau khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c g\u1eafn k\u1ebft v\u00e0o DOM gi\u00fap th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 thao t\u00e1c DOM c\u1ea7n thi\u1ebft n\u00e0o sau khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>beforeUpdate: <\/b><span style=\"font-weight: 400;\">Hook \u0111\u01b0\u1ee3c g\u1ecdi tr\u01b0\u1edbc khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt do thay \u0111\u1ed5i trong thu\u1ed9c t\u00ednh ho\u1eb7c tr\u1ea1ng th\u00e1i c\u1ee7a th\u00e0nh ph\u1ea7n. Hook c\u00f3 h\u1eefu \u00edch trong vi\u1ec7c th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 t\u00e1c v\u1ee5 c\u1eadp nh\u1eadt tr\u01b0\u1edbc c\u1ea7n thi\u1ebft n\u00e0o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>updated: <\/b><span style=\"font-weight: 400;\">Hook \u0111\u01b0\u1ee3c g\u1ecdi sau khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt do c\u00f3 thay \u0111\u1ed5i trong props ho\u1eb7c tr\u1ea1ng th\u00e1i c\u1ee7a th\u00e0nh ph\u1ea7n \u0111\u00f3. Hook n\u00e0y h\u1eefu \u00edch \u0111\u1ec3 th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 t\u00e1c v\u1ee5 h\u1eadu c\u1eadp nh\u1eadt c\u1ea7n thi\u1ebft n\u00e0o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>beforeUnmount:<\/b><span style=\"font-weight: 400;\"> Hook \u0111\u01b0\u1ee3c g\u1ecdi tr\u01b0\u1edbc khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c h\u1ee7y g\u1eafn k\u1ebft kh\u1ecfi DOM. Hook c\u00f3 h\u1eefu \u00edch \u0111\u1ec3 th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 t\u00e1c v\u1ee5 d\u1ecdn d\u1eb9p c\u1ea7n thi\u1ebft n\u00e0o tr\u01b0\u1edbc khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c x\u00f3a kh\u1ecfi DOM.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>unmount:<\/b><span style=\"font-weight: 400;\"> Hook \u0111\u01b0\u1ee3c g\u1ecdi sau khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c h\u1ee7y g\u1eafn k\u1ebft kh\u1ecfi DOM gi\u00fap th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 t\u00e1c v\u1ee5 d\u1ecdn d\u1eb9p c\u1ea7n thi\u1ebft n\u00e0o sau khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c x\u00f3a kh\u1ecfi DOM.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c hook n\u00e0y trong c\u00e1c th\u00e0nh ph\u1ea7n Vue.js, b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c thi m\u00e3 t\u1ea1i c\u00e1c \u0111i\u1ec3m c\u1ee5 th\u1ec3 trong v\u00f2ng \u0111\u1eddi c\u1ee7a th\u00e0nh ph\u1ea7n. B\u00ean c\u1ea1nh \u0111\u00f3, ch\u00fang c\u0169ng cho ph\u00e9p b\u1ea1n th\u1ef1c hi\u1ec7n c\u00e1c qu\u00e1 tr\u00ecnh kh\u1edfi t\u1ea1o, d\u1ecdn d\u1eb9p hay c\u00e1c t\u00e1c v\u1ee5 kh\u00e1c khi c\u1ea7n thi\u1ebft.\u00a0<\/span><\/p>\n<h3><b>Hooks trong Vuejs l\u00e0 g\u00ec? Li\u1ec7t k\u00ea c\u00e1c hooks Vuejs ph\u1ed5 bi\u1ebfn<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Hook l\u00e0 t\u00ednh n\u0103ng m\u1edbi \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u trong Vue.js 3, cho ph\u00e9p th\u00eam logic v\u00e0 qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i v\u00e0o c\u00e1c th\u00e0nh ph\u1ea7n m\u1ed9t c\u00e1ch c\u00f3 t\u1ed5 ch\u1ee9c v\u00e0 c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng. Hook t\u01b0\u01a1ng t\u1ef1 nh\u01b0 hook v\u00f2ng \u0111\u1eddi (life cycle hook), nh\u01b0ng cho ph\u00e9p \u0111\u00f3ng g\u00f3i v\u00e0 t\u00e1i s\u1eed d\u1ee5ng tr\u00ean nhi\u1ec1u th\u00e0nh ph\u1ea7n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Vue.js cung c\u1ea5p m\u1ed9t s\u1ed1 hook t\u00edch h\u1ee3p c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 th\u00eam ch\u1ee9c n\u0103ng v\u00e0o c\u00e1c th\u00e0nh ph\u1ea7n. M\u1ed9t s\u1ed1 hook \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t bao g\u1ed3m:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>&#8216;setup&#8217;: <\/b><span style=\"font-weight: 400;\">\u0110\u00e2y l\u00e0 hook ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u00eam logic v\u00e0 qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i v\u00e0o th\u00e0nh ph\u1ea7n. H\u00e0m setup \u0111\u01b0\u1ee3c g\u1ecdi tr\u01b0\u1edbc khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c t\u1ea1o v\u00e0 cho ph\u00e9p \u0111\u1ecbnh ngh\u0129a d\u1eef li\u1ec7u ph\u1ea3n \u1ee9ng, ph\u01b0\u01a1ng th\u1ee9c, thu\u1ed9c t\u00ednh \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n hay logic kh\u00e1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy c\u1eadp b\u1edfi template c\u1ee7a th\u00e0nh ph\u1ea7n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>&#8216;onMounted&#8217;:<\/b><span style=\"font-weight: 400;\"> Hook n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi sau khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o DOM, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 thao t\u00e1c DOM ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng truy xu\u1ea5t d\u1eef li\u1ec7u c\u1ea7n thi\u1ebft n\u00e0o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>&#8216;onUpdated&#8217;: <\/b><span style=\"font-weight: 400;\">Hook n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi sau khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt do thay \u0111\u1ed5i trong thu\u1ed9c t\u00ednh ho\u1eb7c tr\u1ea1ng th\u00e1i c\u1ee7a th\u00e0nh ph\u1ea7n. Hook c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 t\u00e1c v\u1ee5 n\u00e0o c\u1ea7n thi\u1ebft sau khi c\u1eadp nh\u1eadt.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u2018onUnmounted\u2019: <\/b><span style=\"font-weight: 400;\">\u0110\u01b0\u1ee3c g\u1ecdi tr\u01b0\u1edbc khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c g\u1ee1 kh\u1ecfi DOM. Hook c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 t\u00e1c v\u1ee5 d\u1ecdn d\u1eb9p c\u1ea7n thi\u1ebft n\u00e0o tr\u01b0\u1edbc khi th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c x\u00f3a kh\u1ecfi DOM.\u00a0<\/span><\/li>\n<\/ul>\n<h3><b>Li\u00ean k\u1ebft d\u1eef li\u1ec7u (data binding) trong Vuejs l\u00e0 g\u00ec? C\u00f3 bao nhi\u00eau lo\u1ea1i li\u00ean k\u1ebft d\u1eef li\u1ec7u trong Vuejs?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Li\u00ean k\u1ebft d\u1eef li\u1ec7u (data binding) l\u00e0 qu\u00e1 tr\u00ecnh \u0111\u1ed3ng b\u1ed9 h\u00f3a d\u1eef li\u1ec7u gi\u1eefa Vuejs v\u00e0 DOM. Ch\u00fang cho ph\u00e9p b\u1ea1n thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i gi\u1eefa d\u1eef li\u1ec7u v\u00e0 UI, \u0111\u1ec3 b\u1ea5t k\u1ef3 thay \u0111\u1ed5i n\u00e0o \u0111\u1ed1i v\u1edbi d\u1eef li\u1ec7u \u0111\u1ec1u \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh t\u1ef1 \u0111\u1ed9ng trong UI v\u00e0 b\u1ea5t k\u1ef3 thay \u0111\u1ed5i n\u00e0o \u0111\u1ed1i v\u1edbi UI \u0111\u1ec1u \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh t\u1ef1 \u0111\u1ed9ng trong d\u1eef li\u1ec7u.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00f3 ba lo\u1ea1i li\u00ean k\u1ebft d\u1eef li\u1ec7u trong Vue.js:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Interpolation:<\/b><span style=\"font-weight: 400;\"> \u0110\u00e2y l\u00e0 li\u00ean k\u1ebft m\u1ed9t chi\u1ec1u cho ph\u00e9p nh\u00fang gi\u00e1 tr\u1ecb c\u1ee7a thu\u1ed9c t\u00ednh d\u1eef li\u1ec7u v\u00e0o n\u1ed9i dung c\u1ee7a ph\u1ea7n t\u1eed HTML. N\u00f3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng d\u1ea5u ngo\u1eb7c nh\u1ecdn k\u00e9p \u2018{{ }}\u2019.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Li\u00ean k\u1ebft thu\u1ed9c t\u00ednh (Property binding):<\/b><span style=\"font-weight: 400;\"> \u0110\u00e2y l\u00e0 li\u00ean k\u1ebft m\u1ed9t chi\u1ec1u cho ph\u00e9p \u0111\u1eb7t gi\u00e1 tr\u1ecb c\u1ee7a thu\u1ed9c t\u00ednh c\u1ee7a ph\u1ea7n t\u1eed HTML th\u00e0nh gi\u00e1 tr\u1ecb c\u1ee7a thu\u1ed9c t\u00ednh d\u1eef li\u1ec7u. N\u00f3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng ch\u1ec9 th\u1ecb \u2018v-bind\u2019.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Li\u00ean k\u1ebft hai chi\u1ec1u (Two-way binding):<\/b><span style=\"font-weight: 400;\"> \u0110i\u1ec1u n\u00e0y cho ph\u00e9p li\u00ean k\u1ebft gi\u00e1 tr\u1ecb c\u1ee7a m\u1ed9t ph\u1ea7n t\u1eed \u0111\u1ea7u v\u00e0o bi\u1ec3u m\u1eabu v\u1edbi m\u1ed9t thu\u1ed9c t\u00ednh d\u1eef li\u1ec7u, \u0111\u1ec3 c\u00e1c thay \u0111\u1ed5i \u0111\u1ed1i v\u1edbi c\u00e1c ph\u1ea7n t\u1eed \u0111\u1ea7u v\u00e0o \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh trong d\u1eef li\u1ec7u v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. N\u00f3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng ch\u1ec9 th\u1ecb \u2018v-model\u2019.\u00a0<\/span><\/li>\n<\/ul>\n<h3><b>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u gi\u1eefa c\u00e1c component trong Vuejs?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">B\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u gi\u1eefa c\u00e1c th\u00e0nh ph\u1ea7n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Props, event bus ho\u1eb7c Vuex store. C\u1ee5 th\u1ec3 nh\u01b0 sau:\u00a0<\/span><\/p>\n<p><b>Props: <\/b><span style=\"font-weight: 400;\">Gi\u1ed1ng nh\u01b0 m\u1ed9t \u0111\u1ed1i s\u1ed1 \u0111\u01b0\u1ee3c \u0111\u01b0a cho th\u00e0nh ph\u1ea7n. Thu\u1eadt ng\u1eef \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a \u0111i\u1ec1u n\u00e0y l\u00e0 m\u1ed9t thu\u1ed9c t\u00ednh. Thu\u1ed9c t\u00ednh n\u00e0y \u0111\u01b0\u1ee3c \u0111\u0103ng k\u00fd tr\u00ean th\u00e0nh ph\u1ea7n v\u00e0 cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u t\u1eeb th\u00e0nh ph\u1ea7n cha sang th\u00e0nh ph\u1ea7n con. \u0110\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u qua props, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecbnh ngh\u0129a prop tr\u00ean th\u00e0nh ph\u1ea7n con, sau \u0111\u00f3 li\u00ean k\u1ebft d\u1eef li\u1ec7u v\u1edbi prop tr\u00ean th\u00e0nh ph\u1ea7n cha.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">&lt;!-- Th\u00e0nh ph\u1ea7n cha--&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;template&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0&lt;child-component :message=\"parentMessage\"&gt;&lt;\/child-component&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/template&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;!-- Th\u00e0nh ph\u1ea7n con --&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;script&gt;<\/span>\r\n<span style=\"font-weight: 400;\">export default {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0props: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0message: String<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/script&gt;<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Ho\u1eb7c b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n truy\u1ec1n d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng <strong>event bus<\/strong>. \u0110\u00f3 l\u00e0 m\u1ed9t Vue Instance m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t v\u00e0 l\u1eafng nghe c\u00e1c s\u1ef1 ki\u1ec7n tr\u00ean nhi\u1ec1u th\u00e0nh ph\u1ea7n kh\u00e1c nhau. \u0110\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u b\u1eb1ng event bus, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ec9 c\u1ea7n ph\u00e1t m\u1ed9t s\u1ef1 ki\u1ec7n v\u1edbi d\u1eef li\u1ec7u t\u1eeb m\u1ed9t th\u00e0nh ph\u1ea7n, sau \u0111\u00f3 l\u1eafng nghe s\u1ef1 ki\u1ec7n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u trong m\u1ed9t th\u00e0nh ph\u1ea7n kh\u00e1c.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">export const bus = new Vue()<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ Ph\u00e1t ra m\u1ed9t s\u1ef1 ki\u1ec7n c\u00f3 d\u1eef li\u1ec7u trong Component A<\/span>\r\n<span style=\"font-weight: 400;\">bus.$emit('my-event', data)<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ Nghe s\u1ef1 ki\u1ec7n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u \u1edf Component B<\/span>\r\n<span style=\"font-weight: 400;\">bus.$on('my-event', data =&gt; {<\/span>\r\n<span style=\"font-weight: 400;\">})<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Cu\u1ed1i c\u00f9ng, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng <strong>Vuex store<\/strong>. \u0110\u00e2y l\u00e0 m\u1ed9t m\u1eabu qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i v\u00e0 th\u01b0 vi\u1ec7n cho c\u00e1c \u1ee9ng d\u1ee5ng Vue.js. N\u00f3 cho ph\u00e9p \u0111\u1ecbnh ngh\u0129a m\u1ed9t kho l\u01b0u tr\u1eef t\u1eadp trung \u0111\u1ec3 qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i c\u1ee7a \u1ee9ng d\u1ee5ng v\u00e0 cung c\u1ea5p m\u1ed9t c\u00e1ch \u0111\u1ec3 truy c\u1eadp hay thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i t\u1eeb c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c nhau.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u b\u1eb1ng Vuex store, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ec9 c\u1ea7n \u0111\u1ecbnh ngh\u0129a m\u1ed9t thu\u1ed9c t\u00ednh tr\u1ea1ng th\u00e1i v\u00e0 ph\u01b0\u01a1ng th\u1ee9c thay \u0111\u1ed5i trong kho l\u01b0u tr\u1eef, sau \u0111\u00f3 ph\u00e2n ph\u1ed1i thay \u0111\u1ed5i v\u1edbi d\u1eef li\u1ec7u t\u1eeb m\u1ed9t th\u00e0nh ph\u1ea7n, r\u1ed3i truy c\u1eadp thu\u1ed9c t\u00ednh tr\u1ea1ng th\u00e1i trong m\u1ed9t th\u00e0nh ph\u1ea7n kh\u00e1c.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">\/\/ L\u01b0u tr\u1eef tr\u01b0\u1eddng h\u1ee3p v\u1edbi thu\u1ed9c t\u00ednh tr\u1ea1ng th\u00e1i v\u00e0 \u0111\u1ed9t bi\u1ebfn<\/span>\r\n<span style=\"font-weight: 400;\">export const store = new Vuex.Store({<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0state: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0message: ''<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0},<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0mutations: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0setMessage (state, payload) {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0state.message = payload<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">})<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ Ph\u00e2n ph\u1ed1i \u0111\u1ed9t bi\u1ebfn v\u1edbi d\u1eef li\u1ec7u trong Component A<\/span>\r\n<span style=\"font-weight: 400;\">store.commit('setMessage', data)<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ Truy c\u1eadp thu\u1ed9c t\u00ednh tr\u1ea1ng th\u00e1i trong Component B<\/span>\r\n<span style=\"font-weight: 400;\">this.message = this.$store.state.message<\/span><\/pre>\n<h3><b>Gi\u1ea3i th\u00edch s\u1ef1 kh\u00e1c nhau gi\u1eefa li\u00ean k\u1ebft d\u1eef li\u1ec7u m\u1ed9t chi\u1ec1u (one-way data flow) v\u00e0 li\u00ean k\u1ebft d\u1eef li\u1ec7u hai chi\u1ec1u (two-way data binding) trong Vuejs\u00a0<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">M\u1ed9t s\u1ed1 \u0111i\u1ec3m kh\u00e1c bi\u1ec7t gi\u1eefa li\u00ean k\u1ebft d\u1eef li\u1ec7u m\u1ed9t chi\u1ec1u (one-way data binding) v\u00e0 li\u00ean k\u1ebft d\u1eef li\u1ec7u hai chi\u1ec1u (two-way data binding) trong Vuejs nh\u01b0 sau:<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Ti\u00eau ch\u00ed<\/b><\/td>\n<td><b>One-way data binding<\/b><\/td>\n<td><b>Two-way data binding<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">\u0110\u1ecbnh ngh\u0129a<\/span><\/td>\n<td><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u ch\u1ec9 \u0111i t\u1eeb component cha \u0111\u1ebfn con, kh\u00f4ng th\u1ec3 thay \u0111\u1ed5i tr\u1ef1c ti\u1ebfp t\u1eeb component con.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u c\u00f3 th\u1ec3 truy\u1ec1n t\u1eeb c\u1ea3 hai ph\u00eda component cha \u0111\u1ebfn component con.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">C\u00fa ph\u00e1p<\/span><\/td>\n<td><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1eeb th\u00e0nh ph\u1ea7n cha sang th\u00e0nh ph\u1ea7n con th\u00f4ng qua props.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ea7u v\u00e0o th\u00f4ng qua &#8216;v-model&#8217;.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">V\u00ed d\u1ee5<\/span><\/td>\n<td><span style=\"font-weight: 400;\">&lt;child-component :message=&#8221;parentMessage&#8221;&gt;&lt;\/child-component&gt;<\/span><\/td>\n<td><span style=\"font-weight: 400;\">&lt;input v-model=&#8221;message&#8221;&gt;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">L\u1ee3i \u00edch<\/span><\/td>\n<td><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u \u0111\u01a1n gi\u1ea3n, d\u1ec5 theo d\u00f5i khi d\u1eef li\u1ec7u thay \u0111\u1ed5i.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Hi\u1ec7u su\u1ea5t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n do lu\u1ed3ng d\u1eef li\u1ec7u m\u1ed9t chi\u1ec1u<\/span><\/td>\n<td><span style=\"font-weight: 400;\">D\u1ec5 x\u1eed l\u00fd d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 d\u1eef li\u1ec7u bi\u1ec3u m\u1eabu.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Gi\u1ea3m l\u01b0\u1ee3ng m\u00e3 c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u1eed l\u00fd \u0111\u1ed3ng b\u1ed9 h\u00f3a d\u1eef li\u1ec7u.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">H\u1ea1n ch\u1ebf<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ph\u1ee9c t\u1ea1p h\u01a1n khi tri\u1ec3n khai lu\u1ed3ng d\u1eef li\u1ec7u hai chi\u1ec1u.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 khi\u1ebfn vi\u1ec7c theo d\u00f5i c\u00e1c thay \u0111\u1ed5i d\u1eef li\u1ec7u tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 khi\u1ebfn vi\u1ec7c theo d\u00f5i thay \u0111\u1ed5i d\u1eef li\u1ec7u tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Lu\u1ed3ng d\u1eef li\u1ec7u ph\u1ee9c t\u1ea1p h\u01a1n c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Cau_hoi_phong_van_Vuejs_cho_Middle_Developer\"><\/span><b>C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Vuejs cho Middle Developer<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>S\u1ef1 kh\u00e1c nhau gi\u1eefa hook mounted v\u00e0 created trong Vuejs<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Trong su\u1ed1t v\u00f2ng \u0111\u1eddi, c\u00e1c th\u00e0nh ph\u1ea7n tr\u1ea3i qua nhi\u1ec1u giai \u0111o\u1ea1n, trong \u0111\u00f3 hook created v\u00e0 mounted \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng nh\u01b0 c\u00e1c c\u00f4ng c\u1ee5 \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng c\u00f3 li\u00ean quan. M\u1eb7c d\u00f9 c\u00f3 m\u1ed9t s\u1ed1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u00fang.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Khi m\u1ed9t th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c t\u1ea1o, hook &#8220;created&#8221; \u0111\u01b0\u1ee3c g\u1ecdi ngay l\u1eadp t\u1ee9c v\u00e0 cung c\u1ea5p quy\u1ec1n truy c\u1eadp v\u00e0o d\u1eef li\u1ec7u c\u1ee7a th\u00e0nh ph\u1ea7n \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh. Hook created c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c t\u00e1c v\u1ee5 t\u1ed5 ch\u1ee9c nh\u01b0 c\u1ea5u h\u00ecnh ph\u01b0\u01a1ng th\u1ee9c, d\u1eef li\u1ec7u v\u00e0 s\u1ef1 ki\u1ec7n c\u1ea7n thi\u1ebft cho ch\u1ee9c n\u0103ng chung c\u1ee7a th\u00e0nh ph\u1ea7n<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ngay sau khi template c\u1ee7a th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c bi\u00ean d\u1ecbch, rendered v\u00e0 ch\u00e8n v\u00e0o DOM, hook mounted s\u1ebd ho\u1ea1t \u0111\u1ed9ng. Hook n\u00e0y r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 t\u00e1c v\u1ee5 n\u00e0o y\u00eau c\u1ea7u s\u1eed d\u1ee5ng DOM. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c thi\u1ebft l\u1eadp tr\u00ecnh l\u1eafng nghe s\u1ef1 ki\u1ec7n ho\u1eb7c kh\u1edfi \u0111\u1ed9ng c\u00e1c th\u01b0 vi\u1ec7n c\u1ee7a b\u00ean th\u1ee9 ba.<\/span><\/p>\n<h3><b>B\u1ea1n hi\u1ec3u g\u00ec v\u1ec1 watcher trong Vuejs? Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng ch\u00fang?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Trong Vue.js, watcher l\u00e0 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1eb7c bi\u1ec7t cho ph\u00e9p theo d\u00f5i c\u00e1c thay \u0111\u1ed5i trong m\u1ed9t thu\u1ed9c t\u00ednh d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 v\u00e0 th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 h\u00e0nh \u0111\u1ed9ng khi thu\u1ed9c t\u00ednh \u0111\u00f3 thay \u0111\u1ed5i. Watcher l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a h\u1ec7 th\u1ed1ng ph\u1ea3n \u1ee9ng (reactivity system) c\u1ee7a Vue.js, s\u1ebd t\u1ef1 \u0111\u1ed9ng k\u00edch ho\u1ea1t s\u1ef1 ki\u1ec7n v\u00e0 c\u1eadp nh\u1eadt ch\u1ebf \u0111\u1ed9 xem khi d\u1eef li\u1ec7u thay \u0111\u1ed5i.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Watcher \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi c\u1ea7n th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 h\u00e0nh \u0111\u1ed9ng \u0111\u1ec3 ph\u1ea3n h\u1ed3i c\u00e1c thay \u0111\u1ed5i trong d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1c thu\u1ed9c t\u00ednh ho\u1eb7c ph\u01b0\u01a1ng th\u1ee9c \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n.<\/span><\/p>\n<p><b>V\u00ed d\u1ee5: <\/b><span style=\"font-weight: 400;\">B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng watcher \u0111\u1ec3 c\u1eadp nh\u1eadt bi\u1ec3u \u0111\u1ed3 ho\u1eb7c \u0111\u1ed3 th\u1ecb \u0111\u1ec3 ph\u1ea3n h\u1ed3i c\u00e1c thay \u0111\u1ed5i trong ngu\u1ed3n d\u1eef li\u1ec7u. Ho\u1eb7c c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t l\u1ec7nh g\u1ecdi API khi m\u1ed9t thu\u1ed9c t\u00ednh d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 thay \u0111\u1ed5i.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">\/\/ Basic watcher<\/span>\r\n<span style=\"font-weight: 400;\">watch: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0value(newVal, oldVal) {}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ Deep watcher<\/span>\r\n<span style=\"font-weight: 400;\">watch: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0obj: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0deep: true,<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0handler(newVal) {}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ Immediate watcher<\/span>\r\n<span style=\"font-weight: 400;\">watch: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0value: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0immediate: true,<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0handler(newVal) {}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<h3><b>B\u1ea1n s\u1ebd x\u1eed l\u00fd x\u00e1c th\u1ef1c (authentication) v\u00e0 \u1ee7y quy\u1ec1n (authorization) trong \u1ee9ng d\u1ee5ng Vue.js nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">X\u00e1c th\u1ef1c (authentication) v\u00e0 \u1ee7y quy\u1ec1n (authorization) l\u00e0 nh\u1eefng kh\u00eda c\u1ea1nh quan tr\u1ecdng c\u1ee7a ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng web v\u00e0 Vue.js cung c\u1ea5p m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 x\u1eed l\u00fd ch\u00fang. M\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>X\u00e1c th\u1ef1c: <\/b><span style=\"font-weight: 400;\">\u0110\u1ec3 x\u1eed l\u00fd x\u00e1c th\u1ef1c trong \u1ee9ng d\u1ee5ng Vue.js, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng th\u01b0 vi\u1ec7n x\u00e1c th\u1ef1c (an authentication library) nh\u01b0 JWT ho\u1eb7c OAuth2.0. Sau khi \u0111\u0103ng nh\u1eadp, th\u01b0 vi\u1ec7n x\u00e1c th\u1ef1c s\u1ebd t\u1ea1o m\u00e3 th\u00f4ng b\u00e1o m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 l\u01b0u tr\u1eef trong b\u1ed9 nh\u1edb c\u1ee5c b\u1ed9 ho\u1eb7c cookie c\u1ee7a tr\u00ecnh duy\u1ec7t. Sau \u0111\u00f3, \u0111\u01b0a m\u00e3 th\u00f4ng b\u00e1o n\u00e0y v\u00e0o t\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u ti\u1ebfp theo t\u1edbi m\u00e1y ch\u1ee7 \u0111\u1ec3 x\u00e1c minh danh t\u00ednh c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/span><\/li>\n<\/ul>\n<p><b>V\u00ed d\u1ee5: <\/b><span style=\"font-weight: 400;\">B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng th\u01b0 vi\u1ec7n vue-authenticate \u0111\u1ec3 tri\u1ec3n khai x\u00e1c th\u1ef1c OAuth2.0 trong \u1ee9ng d\u1ee5ng Vue.js. Sau khi ng\u01b0\u1eddi d\u00f9ng \u0111\u0103ng nh\u1eadp b\u1eb1ng th\u00f4ng tin \u0111\u0103ng nh\u1eadp c\u1ee7a h\u1ecd, th\u01b0 vi\u1ec7n s\u1ebd truy xu\u1ea5t m\u00e3 th\u00f4ng b\u00e1o truy c\u1eadp m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c th\u1ef1c c\u00e1c y\u00eau c\u1ea7u ti\u1ebfp theo.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u1ee6y quy\u1ec1n: <\/b><span style=\"font-weight: 400;\">\u0110\u1ec3 x\u1eed l\u00fd \u1ee7y quy\u1ec1n trong \u1ee9ng d\u1ee5ng Vue.js, c\u00f3 th\u1ec3 tri\u1ec3n khai ki\u1ec3m so\u00e1t truy c\u1eadp d\u1ef1a tr\u00ean vai tr\u00f2 (RBAC) ho\u1eb7c ki\u1ec3m so\u00e1t truy c\u1eadp d\u1ef1a tr\u00ean thu\u1ed9c t\u00ednh (ABAC). V\u1edbi RBAC, b\u1ea1n c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c vai tr\u00f2 t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c c\u1ea5p \u0111\u1ed9 truy c\u1eadp kh\u00e1c nhau v\u00e0 ch\u00fang ta ch\u1ec9 \u0111\u1ecbnh c\u00e1c vai tr\u00f2 n\u00e0y cho ng\u01b0\u1eddi d\u00f9ng. V\u1edbi ABAC, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u00e1c ch\u00ednh s\u00e1ch ch\u1ec9 \u0111\u1ecbnh ng\u01b0\u1eddi d\u00f9ng n\u00e0o \u0111\u01b0\u1ee3c ph\u00e9p th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng c\u1ee5 th\u1ec3.<\/span><\/li>\n<\/ul>\n<p><b>V\u00ed d\u1ee5:<\/b><span style=\"font-weight: 400;\"> B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng th\u01b0 vi\u1ec7n vue-acl \u0111\u1ec3 tri\u1ec3n khai RBAC trong \u1ee9ng d\u1ee5ng Vue.js. Th\u01b0 vi\u1ec7n n\u00e0y cung c\u1ea5p m\u1ed9t ph\u1ea7n m\u1ec1m trung gian c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 h\u1ea1n ch\u1ebf quy\u1ec1n truy c\u1eadp v\u00e0o c\u00e1c tuy\u1ebfn \u0111\u01b0\u1eddng ho\u1eb7c th\u00e0nh ph\u1ea7n c\u1ee5 th\u1ec3 d\u1ef1a tr\u00ean vai tr\u00f2 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/span><\/p>\n<h3><b>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u1eed l\u00fd l\u1ed7i trong Vuejs? Gi\u1ea3i th\u00edch k\u00e8m v\u00ed d\u1ee5.<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00f3 m\u1ed9t s\u1ed1 c\u00e1ch x\u1eed l\u00fd l\u1ed7i trong Vue.js t\u00f9y thu\u1ed9c v\u00e0o ng\u1eef c\u1ea3nh v\u00e0 lo\u1ea1i l\u1ed7i. Sau \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00e1ch ti\u1ebfp c\u1eadn ph\u1ed5 bi\u1ebfn:<\/span><\/p>\n<h4><b>C\u00e1ch 1: X\u1eed l\u00fd l\u1ed7i trong c\u00e1c th\u00e0nh ph\u1ea7n (Error handling in Component)<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 x\u1eed l\u00fd l\u1ed7i trong c\u00e1c component, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng kh\u1ed1i try-catch. N\u1ebfu l\u1ed7i x\u1ea3y ra trong th\u00e0nh ph\u1ea7n, kh\u1ed1i catch s\u1ebd b\u1eaft l\u1ed7i v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng th\u00edch h\u1ee3p \u0111\u1ec3 x\u1eed l\u00fd l\u1ed7i.<\/span><\/p>\n<p><b>V\u00ed d\u1ee5:<\/b><span style=\"font-weight: 400;\"> B\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb th\u00f4ng b\u00e1o l\u1ed7i cho ng\u01b0\u1eddi d\u00f9ng, ghi l\u1ea1i l\u1ed7i ho\u1eb7c th\u1eadm ch\u00ed g\u1eedi \u0111\u1ebfn m\u00e1y ch\u1ee7 \u0111\u1ec3 ph\u00e2n t\u00edch th\u00eam.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">&lt;template&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0&lt;div&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;button @click=\"handleClick\"&gt;Click Me&lt;\/button&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0&lt;\/div&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/template&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;script&gt;<\/span>\r\n<span style=\"font-weight: 400;\">export default {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0methods: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0handleClick() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0try {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/ M\u00e3 c\u00f3 th\u1ec3 b\u1ecb l\u1ed7i<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0} catch (error) {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/ Kh\u1eafc ph\u1ee5c l\u1ed7i<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/script&gt;<\/span><\/pre>\n<h4><b>C\u00e1ch 2: X\u1eed l\u00fd l\u1ed7i to\u00e0n c\u1ee5c (global errors)<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 x\u1eed l\u00fd l\u1ed7i to\u00e0n c\u1ee5c, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng thu\u1ed9c t\u00ednh errorHandler c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ea5u h\u00ecnh. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1eaft v\u00e0 x\u1eed l\u00fd l\u1ed7i x\u1ea3y ra \u1edf b\u1ea5t k\u1ef3 \u0111\u00e2u trong \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n. H\u00e3y xem v\u00ed d\u1ee5 b\u00ean d\u01b0\u1edbi \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">import Vue from 'vue'<\/span>\r\n<span style=\"font-weight: 400;\">Vue.config.errorHandler = function (error, vm, info) {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\/\/ Kh\u1eafc ph\u1ee5c l\u1ed7i<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<h4><b>C\u00e1ch 3: X\u1eed l\u00fd l\u1ed7i trong Promis (Promise errors)<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 s\u1eed d\u1ee5ng Promise trong \u1ee9ng d\u1ee5ng Vue.js, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng th\u1ee9c catch \u0111\u1ec3 x\u1eed l\u00fd l\u1ed7i x\u1ea3y ra trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u0111\u1ed3ng b\u1ed9. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">this.$http.get('\/api\/data')<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0.then(response =&gt; {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\/\/ X\u1eed l\u00fd ph\u1ea3n h\u1ed3i<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0})<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0.catch(error =&gt; {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\/\/ X\u1eed l\u00fd l\u1ed7i<\/span>\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0})<\/span><\/pre>\n<h3><b>S\u1ef1 kh\u00e1c nhau gi\u1eefa Vuejs, React v\u00e0 Angular?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh m\u1ed9t s\u1ed1 \u0111i\u1ec3m kh\u00e1c bi\u1ec7t gi\u1eefa Vuejs, <\/span><a href=\"https:\/\/itviec.com\/blog\/nodejs-la-gi\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">React<\/span><\/a><span style=\"font-weight: 400;\"> v\u00e0 <\/span><a href=\"https:\/\/itviec.com\/blog\/angular-la-gi\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Angular<\/span><\/a>:<\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Ti\u00eau ch\u00ed<\/b><\/td>\n<td><b>Vuejs<\/b><\/td>\n<td><b>React<\/b><\/td>\n<td><b>Angular<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Ng\u00f4n ng\u1eef<\/span><\/td>\n<td><span style=\"font-weight: 400;\">JavaScript\/TypeScript (Vue 3 \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng TypeScript v\u00e0 h\u1ed7 tr\u1ee3 t\u1ed1t TypeScript)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">JavaScript\/TypeScript<\/span><\/td>\n<td><span style=\"font-weight: 400;\">TypeScript<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Template<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Single File Components (.vue). Template syntax v\u1edbi HTML-based DSL v\u00e0 h\u1ed7 tr\u1ee3 JSX\/TSX<\/span><\/td>\n<td><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng JSX, cho ph\u00e9p vi\u1ebft m\u00e3 HTML b\u00ean trong javascript. C\u0169ng h\u1ed7 tr\u1ee3 template literals<\/span><\/td>\n<td><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng template d\u1ef1a tr\u00ean HTML. C\u00f3 template syntax ri\u00eang<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Size<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Framework nh\u1ecf v\u00e0 g\u1ecdn. K\u00edch th\u01b0\u1edbc ~33KB (ch\u1ec9 runtime).<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Framework nh\u1ecf v\u00e0 g\u1ecdn. K\u00edch th\u01b0\u1edbc nh\u1ecf ~42KB (react + react-dom).<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Framework l\u1edbn h\u01a1n, v\u1edbi k\u00edch th\u01b0\u1edbc ~150KB (c\u00e1c core packages).<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Rendering<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ch\u1ee7 y\u1ebfu l\u00e0 m\u1ed9t khung k\u1ebft xu\u1ea5t ph\u00eda m\u00e1y kh\u00e1ch, ngh\u0129a l\u00e0 k\u1ebft xu\u1ea5t to\u00e0n b\u1ed9 \u1ee9ng d\u1ee5ng \u1edf ph\u00eda m\u00e1y kh\u00e1ch b\u1eb1ng JavaScript. Vue.js c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u1ebft xu\u1ea5t ph\u00eda m\u00e1y ch\u1ee7 v\u00e0 c\u00f3 h\u1ed7 tr\u1ee3 Static site generation<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ch\u1ee7 y\u1ebfu l\u00e0 m\u1ed9t khung k\u1ebft xu\u1ea5t ph\u00eda m\u00e1y kh\u00e1ch. Server-side rendering v\u1edbi Next.js v\u00e0 Static site generation<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf k\u1ebft xu\u1ea5t c\u1ea3 ph\u00eda m\u00e1y kh\u00e1ch v\u00e0 ph\u00eda m\u00e1y ch\u1ee7. S\u1eed d\u1ee5ng c\u00fa ph\u00e1p \u0111\u1eb7c bi\u1ec7t c\u00f3 t\u00ean l\u00e0 Angular Universal \u0111\u1ec3 cho ph\u00e9p b\u1ea1n k\u1ebft xu\u1ea5t \u1ee9ng d\u1ee5ng c\u1ee7a m\u00ecnh \u1edf ph\u00eda m\u00e1y ch\u1ee7.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">State<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 m\u1ed9t th\u01b0 vi\u1ec7n qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i ch\u00ednh th\u1ee9c t\u00ean l\u00e0 Vuex, cung c\u1ea5p c\u00e1ch qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i theo c\u00e1ch t\u1eadp trung v\u00e0 c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c. C\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Pinia (\u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho Vue 3)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 m\u1ed9t th\u01b0 vi\u1ec7n qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i kh\u00f4ng ch\u00ednh th\u1ee9c l\u00e0 Redux, \u0111\u00e3 tr\u1edf n\u00ean r\u1ea5t ph\u1ed5 bi\u1ebfn trong c\u1ed9ng \u0111\u1ed3ng React. React c\u0169ng c\u00f3 m\u1ed9t hook t\u00edch h\u1ee3p (useState) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ngo\u00e0i ra c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng MobX, Recoil, Context API + useState\/useReducer<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i t\u00edch h\u1ee3p v\u00e0 s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p c\u00e1c d\u1ecbch v\u1ee5, observable v\u00e0 th\u01b0 vi\u1ec7n RxJS \u0111\u1ec3 qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i. Ngo\u00e0i ra c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng NgRx (Redux pattern), Signals (m\u1edbi trong Angular 16+)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p><em>\u0110\u1ecdc th\u00eam: <a href=\"https:\/\/itviec.com\/blog\/so-sanh-angular-va-reactjs\/\" target=\"_blank\" rel=\"noopener\"><strong>So s\u00e1nh Angular v\u00e0 ReactJS: Framework Frontend n\u00e0o t\u1ed1t h\u01a1n?<\/strong><\/a><\/em><\/p><\/blockquote>\n<h3><b>B\u1ea1n s\u1ebd tri\u1ec3n khai lazy-loading trong \u1ee9ng d\u1ee5ng Vue.js nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Lazy loading v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 chia nh\u1ecf m\u00e3 v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n th\u1ee7 thu\u1eadt th\u00fa v\u1ecb n\u00e0y v\u1edbi Webpack. \u0110\u00e2y ch\u1ec9 l\u00e0 m\u1ed9t c\u00e1ch tuy\u1ec7t v\u1eddi \u0111\u1ec3 \u0111\u00f3ng g\u00f3i cho c\u00e1c d\u1ef1 \u00e1n Vue CLI. Sau \u0111\u00e2y l\u00e0 c\u00e1c b\u01b0\u1edbc chung \u0111\u1ec3 tri\u1ec3n khai lazy-loading trong \u1ee9ng d\u1ee5ng Vue.js:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>C\u1ea5u h\u00ecnh webpack:<\/b><span style=\"font-weight: 400;\"> Trong t\u1ec7p vue.config.js c\u1ee7a d\u1ef1 \u00e1n, b\u1ea1n c\u1ea7n thi\u1ebft l\u1eadp webpack \u0111\u1ec3 n\u00f3 c\u1eaft \u1ee9ng d\u1ee5ng th\u00e0nh c\u00e1c ph\u1ea7n nh\u1ecf h\u01a1n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng splitChunks ho\u1eb7c dynamicImport.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>X\u00e1c \u0111\u1ecbnh m\u1ed9t \u0111o\u1ea1n d\u1ef1a tr\u00ean route: <\/b><span style=\"font-weight: 400;\">Trong b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn Vue, c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ed9t s\u1ed1 \u0111o\u1ea1n m\u00e3 cho m\u1ed9t tuy\u1ebfn \u0111\u01b0\u1eddng c\u1ee5 th\u1ec3 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng thu\u1ed9c t\u00ednh th\u00e0nh ph\u1ea7n v\u00e0 m\u1ed9t h\u00e0m. \u0110i\u1ec1u n\u00e0y s\u1ebd tr\u1ea3 v\u1ec1 m\u1ed9t c\u00e2u l\u1ec7nh import \u0111\u1ed9ng cho th\u00e0nh ph\u1ea7n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>S\u1eed d\u1ee5ng th\u00e0nh ph\u1ea7n lazy-loaded: <\/b><span style=\"font-weight: 400;\">Trong c\u00e1c m\u1eabu Vue c\u1ee7a b\u1ea1n, h\u00e3y s\u1eed d\u1ee5ng ph\u1ea7n t\u1eed th\u00e0nh ph\u1ea7n v\u00e0 li\u00ean k\u1ebft thu\u1ed9c t\u00ednh v\u1edbi t\u00ean th\u00e0nh ph\u1ea7n lazy-loaded.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">V\u00ed d\u1ee5:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">&lt;!-- Template --&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;template&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0&lt;div&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;!-- S\u1eed d\u1ee5ng v-lazy directive \u0111\u1ec3 lazy load h\u00ecnh \u1ea3nh --&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;img v-lazy=\"imageSrc\" alt=\"Image\"&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0&lt;\/div&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/template&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;script&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0import Vue from 'vue';<\/span>\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0import VueLazyload from 'vue-lazyload';<\/span>\r\n\r\n<span style=\"font-weight: 400;\"> \u00a0export default {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0data() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0return {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0imageSrc: 'path\/to\/image.jpg'<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0},<\/span>\r\n\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0mounted() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0Vue.use(VueLazyload, {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0preLoad: 1.3,<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0error: 'path\/to\/error.png',<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0loading: 'path\/to\/loading.gif',<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0attempt: 1<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0});<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/script&gt;<\/span><\/pre>\n<h3><b>B\u1ea1n s\u1ebd t\u00edch h\u1ee3p th\u01b0 vi\u1ec7n c\u1ee7a b\u00ean th\u1ee9 ba (third-party) v\u00e0o \u1ee9ng d\u1ee5ng Vue.js nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 t\u00edch h\u1ee3p th\u01b0 vi\u1ec7n c\u1ee7a b\u00ean th\u1ee9 ba v\u00e0o \u1ee9ng d\u1ee5ng Vue.js, c\u00f3 th\u1ec3 l\u00e0m theo c\u00e1c b\u01b0\u1edbc chung sau:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>C\u00e0i \u0111\u1eb7t th\u01b0 vi\u1ec7n:<\/b><span style=\"font-weight: 400;\"> S\u1eed d\u1ee5ng tr\u00ecnh qu\u1ea3n l\u00fd g\u00f3i nh\u01b0 npm ho\u1eb7c yarn \u0111\u1ec3 c\u00e0i \u0111\u1eb7t th\u01b0 vi\u1ec7n d\u01b0\u1edbi d\u1ea1ng ph\u1ee5 thu\u1ed9c.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Nh\u1eadp (import) th\u01b0 vi\u1ec7n<\/b><span style=\"font-weight: 400;\">: Nh\u1eadp th\u01b0 vi\u1ec7n v\u00e0o \u0111i\u1ec3m v\u00e0o c\u1ee7a \u1ee9ng d\u1ee5ng Vue.js (v\u00ed d\u1ee5: main.js) b\u1eb1ng c\u00fa ph\u00e1p ph\u00f9 h\u1ee3p cho th\u01b0 vi\u1ec7n. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m nh\u1eadp th\u01b0 vi\u1ec7n d\u01b0\u1edbi d\u1ea1ng m\u00f4-\u0111un, t\u1ea3i t\u1ec7p t\u1eadp l\u1ec7nh t\u1eeb CDN ho\u1eb7c s\u1eed d\u1ee5ng plugin \u0111\u1eb7c bi\u1ec7t cho th\u01b0 vi\u1ec7n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>S\u1eed d\u1ee5ng th\u01b0 vi\u1ec7n trong c\u00e1c th\u00e0nh ph\u1ea7n: <\/b><span style=\"font-weight: 400;\">T\u00f9y thu\u1ed9c v\u00e0o th\u01b0 vi\u1ec7n, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n \u0111\u1ecbnh c\u1ea5u h\u00ecnh ho\u1eb7c kh\u1edfi t\u1ea1o th\u01b0 vi\u1ec7n tr\u01b0\u1edbc khi c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u s\u1eed d\u1ee5ng th\u01b0 vi\u1ec7n trong c\u00e1c th\u00e0nh ph\u1ea7n Vue.js c\u1ee7a m\u00ecnh. Sau \u0111\u00f3, s\u1eed d\u1ee5ng API v\u00e0 h\u00e0m c\u1ee7a th\u01b0 vi\u1ec7n trong c\u00e1c ph\u01b0\u01a1ng th\u1ee9c th\u00e0nh ph\u1ea7n, thu\u1ed9c t\u00ednh \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n ho\u1eb7c m\u00f3c v\u00f2ng \u0111\u1eddi.\u00a0<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">V\u00ed d\u1ee5:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">\/\/ Global registration<\/span>\r\n<span style=\"font-weight: 400;\">import ThirdPartyLib from 'third-party-lib'<\/span>\r\n<span style=\"font-weight: 400;\">app.use(ThirdPartyLib)<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ Plugin creation<\/span>\r\n<span style=\"font-weight: 400;\">const myPlugin = {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0install(app, options) {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\/\/ Plugin logic<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ Component-level integration<\/span>\r\n<span style=\"font-weight: 400;\">import { someFeature } from 'third-party-lib'<\/span>\r\n<span style=\"font-weight: 400;\">export default {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0mounted() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0someFeature.init(this.$el)<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<h3><b>S\u1ef1 kh\u00e1c nhau gi\u1eefa th\u00e0nh ph\u1ea7n ch\u1ee9c n\u0103ng (functional component) v\u00e0 th\u00e0nh ph\u1ea7n th\u00f4ng th\u01b0\u1eddng (regular component) trong Vuejs?<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><b>Ti\u00eau ch\u00ed<\/b><\/td>\n<td><b>Th\u00e0nh ph\u1ea7n ch\u1ee9c n\u0103ng<\/b><\/td>\n<td><b>Th\u00e0nh ph\u1ea7n th\u00f4ng th\u01b0\u1eddng<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Lo\u1ea1i (type)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Stateless v\u00e0 \u0111\u01a1n gi\u1ea3n, ch\u1ec9 nh\u1eadn props v\u00e0 tr\u1ea3 v\u1ec1 JSX<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Stateful v\u00e0 ph\u1ee9c t\u1ea1p, c\u00f3 th\u1ec3 ch\u1ee9a logic v\u00e0 d\u1eef li\u1ec7u b\u00ean trong<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Life cycle hook<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Kh\u00f4ng c\u00f3 lifecycle hooks (do stateless)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u0110\u1ea7y \u0111\u1ee7 c\u00e1c lifecycle hooks nh\u01b0 created, mounted, updated, destroyed<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Render<\/span><\/td>\n<td><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng h\u00e0m render duy nh\u1ea5t, t\u1ed1i \u01b0u cho hi\u1ec7u su\u1ea5t<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u0110\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1eb1ng m\u1eabu ho\u1eb7c h\u00e0m render.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Kh\u00f4ng c\u00f3 d\u1eef li\u1ec7u ho\u1eb7c ph\u01b0\u01a1ng th\u1ee9c. D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n qua props<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 c\u00f3 d\u1eef li\u1ec7u ho\u1eb7c ph\u01b0\u01a1ng th\u1ee9c<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Hi\u1ec7u su\u1ea5t<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Hi\u1ec7u su\u1ea5t t\u1ed1t v\u1edbi chi ph\u00ed th\u1ea5p<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Chi ph\u00ed hi\u1ec7u su\u1ea5t th\u1ea5p<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Communication<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ph\u1ea3i s\u1eed d\u1ee5ng props v\u00e0 ph\u00e1t ra s\u1ef1 ki\u1ec7n.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng props, event v\u00e0 v\u00e0 c\u00f3 th\u1ec3 truy c\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o c\u00e1c ph\u01b0\u01a1ng th\u1ee9c c\u1ee7a component con (qua ref)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">V\u00ed d\u1ee5 t\u1ea1o m\u1ed9t functional component nh\u01b0 sau:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">\/\/ S\u1eed d\u1ee5ng `functional` option<\/span>\r\n<span style=\"font-weight: 400;\">Vue.component('my-functional-component', {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0functional: true,<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0render: function (createElement, context) {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\/\/ K\u1ebft xu\u1ea5t logic function \u1edf \u0111\u00e2y<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">})<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ S\u1eed d\u1ee5ng c\u00fa ph\u00e1p vi\u1ebft t\u1eaft<\/span>\r\n<span style=\"font-weight: 400;\">export default {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0functional: true,<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0render: (h, context) =&gt; {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\/\/ K\u1ebft xu\u1ea5t logic function \u1edf \u0111\u00e2y<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">M\u1ed9t v\u00ed d\u1ee5 v\u1ec1 vi\u1ec7c s\u1eed d\u1ee5ng regular component nh\u01b0 sau:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">Vue.component('my-regular-component', {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0template: `<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;div&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0&lt;!-- Template markup here --&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;\/div&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0`,<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0data() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0return {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0},<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0methods: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0},<\/span>\r\n<span style=\"font-weight: 400;\">})<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ S\u1eed d\u1ee5ng render function<\/span>\r\n<span style=\"font-weight: 400;\">Vue.component('my-regular-component', {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0render: function (createElement) {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0},<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0data() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0return {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0},<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0methods: {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0},<\/span>\r\n<span style=\"font-weight: 400;\">})<\/span><\/pre>\n<h3><b>S\u1ef1 kh\u00e1c nhau gi\u1eefa th\u00e0nh ph\u1ea7n \u0111\u1ed3ng b\u1ed9 (synchronous component) v\u00e0 th\u00e0nh ph\u1ea7n kh\u00f4ng \u0111\u1ed3ng b\u1ed9 (asynchronous components) trong Vue.js?<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><b>Ti\u00eau ch\u00ed<\/b><\/td>\n<td><b>Th\u00e0nh ph\u1ea7n \u0111\u1ed3ng b\u1ed9<\/b><\/td>\n<td><b>Th\u00e0nh ph\u1ea7n kh\u00f4ng \u0111\u1ed3ng b\u1ed9<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Th\u1eddi gian t\u1ea3i (loading time)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u0110\u01b0\u1ee3c t\u1ea3i trong qu\u00e1 tr\u00ecnh t\u1ea1o \u1ee9ng d\u1ee5ng<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ch\u1ec9 t\u1ea3i khi c\u1ea7n thi\u1ebft<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">C\u00e2u l\u1ec7nh nh\u1eadp<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Trong file ch\u00ednh<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Trong th\u00e0nh ph\u1ea7n cha<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">K\u00edch th\u01b0\u1edbc<\/span><\/td>\n<td><span style=\"font-weight: 400;\">T\u0103ng k\u00edch th\u01b0\u1edbc bundle ban \u0111\u1ea7u<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Gi\u1ea3m k\u00edch th\u01b0\u1edbc bundle\u00a0 ban \u0111\u1ea7u<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Hi\u1ec7u su\u1ea5t<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn th\u1eddi gian t\u1ea3i ban \u0111\u1ea7u v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a \u1ee9ng d\u1ee5ng.<\/span><\/td>\n<td><span style=\"font-weight: 400;\"> C\u1ea3i thi\u1ec7n th\u1eddi gian t\u1ea3i ban \u0111\u1ea7u v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a \u1ee9ng d\u1ee5ng.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">\u0110\u1ecbnh ngh\u0129a<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u0110\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a \u0111\u1ed3ng b\u1ed9 trong th\u00e0nh ph\u1ea7n cha.<\/span><\/td>\n<td><span style=\"font-weight: 400;\"> \u0110\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a kh\u00f4ng \u0111\u1ed3ng b\u1ed9 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng factory component v\u00e0 dynamic import.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">\u1ee8ng d\u1ee5ng template<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp trong c\u00e1c template<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ph\u1ea3i \u0111\u01b0\u1ee3c bao b\u1ecdc trong th\u1ebb &lt;component&gt; v\u1edbi thu\u1ed9c t\u00ednh is ho\u1eb7c s\u1eed d\u1ee5ng dynamic component<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Th\u00e0nh ph\u1ea7n \u0111\u1ed9ng<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Kh\u00f4ng ph\u00f9 h\u1ee3p k\u1ebft xu\u1ea5t<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ph\u00f9 h\u1ee3p \u0111\u1ec3 k\u1ebft xu\u1ea5t<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Ph\u00e2n t\u00e1ch m\u00e3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Kh\u00f4ng th\u1ec3 ph\u00e2n chia m\u00e3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 ph\u00e2n chia m\u00e3<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><b>K\u1ebft xu\u1ea5t ph\u00eda m\u00e1y ch\u1ee7 trong Vue.js l\u00e0 g\u00ec v\u00e0 n\u00f3 kh\u00e1c v\u1edbi k\u1ebft xu\u1ea5t ph\u00eda m\u00e1y kh\u00e1ch nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">K\u1ebft xu\u1ea5t ph\u00eda m\u00e1y ch\u1ee7 (SSR) l\u00e0 m\u1ed9t th\u1ee7 thu\u1eadt ph\u00e1t tri\u1ec3n web li\u00ean quan \u0111\u1ebfn vi\u1ec7c t\u1ea1o n\u1ed9i dung HTML tr\u00ean m\u00e1y ch\u1ee7 v\u00e0 chuy\u1ec3n \u0111\u1ebfn m\u00e1y kh\u00e1ch d\u01b0\u1edbi d\u1ea1ng trang HTML ho\u00e0n ch\u1ec9nh. Vue.js sao l\u01b0u SSR v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi k\u1ebft xu\u1ea5t ph\u00eda m\u00e1y kh\u00e1ch \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u1ee9ng d\u1ee5ng \u0111a n\u0103ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Trong qu\u00e1 tr\u00ecnh k\u1ebft xu\u1ea5t \u1edf ph\u00eda m\u00e1y kh\u00e1ch, tr\u00ecnh duy\u1ec7t s\u1ebd l\u1ea5y c\u00e1c m\u00e3 v\u00e0 thi\u1ebft k\u1ebf trang web c\u01a1 b\u1ea3n \u0111\u1ec3 kh\u1edfi ch\u1ea1y ch\u1ebf \u0111\u1ed9 xem trang \u1edf ph\u00eda ng\u01b0\u1eddi d\u00f9ng. Khi ng\u01b0\u1eddi d\u00f9ng ch\u1ec9nh s\u1eeda trang, ph\u00eda ng\u01b0\u1eddi d\u00f9ng x\u1eed l\u00fd s\u1ebd ti\u1ebfp c\u1eadn \u0111\u1ec3 l\u1ea5y d\u1eef li\u1ec7u m\u1edbi t\u1eeb m\u00e1y ch\u1ee7 v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u00e1c th\u1ebb HTML c\u1ed1t l\u00f5i theo y\u00eau c\u1ea7u. C\u00e1ch n\u00e0y c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">M\u1edf r\u1ed9ng trang trong m\u1ed9t d\u1ea5u g\u1ea1ch ngang, th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 thay \u0111\u1ed5i t\u01b0\u01a1ng t\u00e1c tuy\u1ec7t v\u1eddi v\u00e0 gi\u00fap c\u00f4ng vi\u1ec7c c\u1ee7a ng\u01b0\u1eddi vi\u1ebft m\u00e3 d\u1ec5 d\u00e0ng h\u01a1n r\u1ea5t nhi\u1ec1u.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tuy nhi\u00ean, n\u00f3 c\u0169ng c\u00f3 nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u01b0 khi n\u00f3i \u0111\u1ebfn SEO, s\u1ebd c\u00f3 m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 v\u00e0 th\u1eddi gian \u0111\u01b0a n\u1ed9i dung c\u1ee7a trang s\u1ebd k\u00e9o d\u00e0i m\u1ed9t ch\u00fat.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">M\u1eb7t kh\u00e1c, SSR th\u1ef1c hi\u1ec7n h\u01b0\u1edbng n\u1ed9i dung HTML \u1edf ph\u00eda m\u00e1y ch\u1ee7 v\u00e0 g\u1eedi \u0111\u1ebfn m\u00e1y kh\u00e1ch d\u01b0\u1edbi d\u1ea1ng trang HTML \u0111\u1ea7y \u0111\u1ee7. C\u00e1ch n\u00e0y s\u1ebd m\u1ea5t nhi\u1ec1u th\u1eddi gian h\u01a1n \u0111\u1ec3 trang hi\u1ec3n th\u1ecb l\u1ea7n \u0111\u1ea7u ti\u00ean, nh\u01b0ng khi \u0111\u00e3 hi\u1ec3n th\u1ecb, n\u00f3 \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng ho\u00e0n h\u1ea3o. B\u00ean c\u1ea1nh \u0111\u00f3, SSR c\u00f3 m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m so v\u1edbi k\u1ebft xu\u1ea5t ph\u00eda m\u00e1y kh\u00e1ch nh\u01b0 t\u1ed1i \u01b0u h\u00f3a c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm t\u1ed1t h\u01a1n, th\u1eddi gian t\u1ea3i n\u1ed9i dung nhanh h\u01a1n v\u00e0 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh h\u01a1n tr\u00ean c\u00e1c thi\u1ebft b\u1ecb y\u1ebfu.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 xem SSR trong Vue.js, b\u1ea1n ph\u1ea3i s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 d\u1ef1a tr\u00ean <\/span><a href=\"https:\/\/itviec.com\/blog\/nodejs-la-gi\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Node.js<\/span><\/a><span style=\"font-weight: 400;\"> \u0111\u1ec3 \u0111\u01b0a ra n\u1ed9i dung HTML \u0111\u1ea7u ti\u00ean. Khi ng\u01b0\u1eddi d\u00f9ng y\u00eau c\u1ea7u m\u1ed9t trang, m\u00e3 \u1edf ph\u00eda m\u00e1y ch\u1ee7 s\u1ebd t\u1ea1o n\u1ed9i dung HTML b\u1eb1ng c\u00e1c ti\u1ec7n \u00edch c\u1ee7a Vue.js v\u00e0 g\u1eedi \u0111\u1ebfn tr\u00ecnh ph\u00e1t. Khi trang \u0111\u00e3 s\u1eb5n s\u00e0ng, m\u00e3 ph\u00eda m\u00e1y kh\u00e1ch s\u1ebd l\u1ea5y c\u00e1c \u0111o\u1ea1n m\u00e3 v\u00e0 c\u1eadp nh\u1eadt DOM khi c\u1ea7n.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cau_hoi_phong_van_Vuejs_xu_ly_tinh_huong_thuc_te\"><\/span><b>C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Vuejs x\u1eed l\u00fd t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>B\u1ea1n s\u1ebd t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a m\u1ed9t \u1ee9ng d\u1ee5ng Vue.js l\u1edbn nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a m\u1ed9t \u1ee9ng d\u1ee5ng Vue.js l\u1edbn \u0111\u00f2i h\u1ecfi m\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p gi\u1ea3i quy\u1ebft c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c nhau c\u1ee7a \u1ee9ng d\u1ee5ng. B\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o v\u00e0 tr\u00ecnh b\u00e0y m\u1ed9t s\u1ed1 chi\u1ebfn l\u01b0\u1ee3c ph\u1ed5 bi\u1ebfn nh\u01b0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Lazy loading:<\/b><span style=\"font-weight: 400;\"> Thay v\u00ec t\u1ea3i m\u1ecdi th\u1ee9 c\u00f9ng m\u1ed9t l\u00fac th\u00ec c\u00f3 th\u1ec3 chia \u1ee9ng d\u1ee5ng th\u00e0nh c\u00e1c ph\u1ea7n nh\u1ecf h\u01a1n v\u00e0 t\u1ea3i ch\u00fang theo y\u00eau c\u1ea7u b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng t\u1ea3i ch\u1eadm. Ph\u01b0\u01a1ng ph\u00e1p chia nh\u1ecf n\u00e0y c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian t\u1ea3i ban \u0111\u1ea7u v\u00e0 n\u00e2ng cao hi\u1ec7u su\u1ea5t chung c\u1ee7a \u1ee9ng d\u1ee5ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Chia m\u00e3 (code splitting):<\/b><span style=\"font-weight: 400;\"> C\u00f3 th\u1ec3 chia m\u00e3 th\u00e0nh c\u00e1c ph\u1ea7n nh\u1ecf h\u01a1n, v\u00e0 ch\u1ec9 c\u00f3 th\u1ec3 t\u1ea3i th\u00e0nh ph\u1ea7n c\u1ea7n thi\u1ebft. S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u00fap gi\u1ea3m k\u00edch th\u01b0\u1edbc c\u1ee7a \u1ee9ng d\u1ee5ng v\u00e0 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a \u1ee9ng d\u1ee5ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Thu nh\u1ecf v\u00e0 n\u00e9n: <\/b><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 n\u00e9n k\u00edch th\u01b0\u1edbc \u1ee9ng d\u1ee5ng v\u00e0 s\u1eed d\u1ee5ng phi\u00ean b\u1ea3n thu nh\u1ecf c\u1ee7a c\u00e1c t\u1ec7p Javascript v\u00e0 CSS (nh\u01b0 jquery.min-js). \u0110i\u1ec1u n\u00e0y gi\u00fap t\u0103ng t\u1ed1c \u0111\u1ed9 t\u1ea3i xu\u1ed1ng v\u00e0 t\u0103ng hi\u1ec7u su\u1ea5t.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>L\u01b0u tr\u1eef \u0111\u1ec7m: <\/b><span style=\"font-weight: 400;\">C\\\u00f3 th\u1ec3 l\u01b0u tr\u1eef \u0111\u1ec7m c\u00e1c th\u1ee9 nh\u01b0 \u1ea3nh, ph\u00f4ng ch\u1eef v\u00e0 ph\u1ea3n h\u1ed3i API \u0111\u1ec3 kh\u00f4ng g\u00e2y qu\u00e1 nhi\u1ec1u t\u1ea3i cho m\u1ea1ng v\u00e0 gi\u00fap \u1ee9ng d\u1ee5ng ch\u1ea1y nhanh h\u01a1n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>S\u1eed d\u1ee5ng Vuex \u0111\u1ec3 qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i:<\/b><span style=\"font-weight: 400;\"> Vue.js cung c\u1ea5p Vuex (m\u1ed9t th\u01b0 vi\u1ec7n qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i). \u0110i\u1ec1u n\u00e0y cho ph\u00e9p qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i c\u1ee7a \u1ee9ng d\u1ee5ng trong m\u1ed9t kho l\u01b0u tr\u1eef t\u1eadp trung. S\u1eed d\u1ee5ng Vuex c\u00f3 th\u1ec3 gi\u00fap c\u1eaft gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng l\u1ec7nh g\u1ecdi API v\u00e0 l\u00e0m cho \u1ee9ng d\u1ee5ng Vue.js ho\u1ea1t \u0111\u1ed9ng nhanh h\u01a1n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>S\u1eed d\u1ee5ng Async Components: <\/b><span style=\"font-weight: 400;\">Cho ph\u00e9p t\u1ea3i c\u00e1c th\u00e0nh ph\u1ea7n theo y\u00eau c\u1ea7u, c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m c\u00e1c l\u1ec7nh g\u1ecdi\/y\u00eau c\u1ea7u kh\u00f4ng c\u1ea7n thi\u1ebft c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n t\u1ea1i th\u1eddi \u0111i\u1ec3m ban \u0111\u1ea7u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u1ed1i \u01b0u h\u00f3a c\u00e1c ch\u1ec9 th\u1ecb Vue.js<\/b><span style=\"font-weight: 400;\">: S\u1eed d\u1ee5ng v-if thay v\u00ec v-show \u0111\u1ec3 hi\u1ec3n th\u1ecb c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 \u0111i\u1ec1u ki\u1ec7n. Ngo\u00e0i ra, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng v-for v\u1edbi thu\u1ed9c t\u00ednh key v\u00e0 s\u1eed d\u1ee5ng v-cloak \u0111\u1ec3 \u1ea9n c\u00e1c m\u1eabu Vue.js ch\u01b0a bi\u00ean d\u1ecbch.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Server-side Rendering: <\/b><span style=\"font-weight: 400;\">Gi\u00fap t\u1ea3i tr\u01b0\u1edbc m\u1ed9t s\u1ed1 t\u1ec7p HTML, CSS v\u00e0 JavaScript c\u1ea7n thi\u1ebft. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u1ec1 m\u1eb7t SEO.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch hi\u1ec7u su\u1ea5t: <\/b><span style=\"font-weight: 400;\">C\u00f3 nhi\u1ec1u c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch hi\u1ec7u su\u1ea5t kh\u00e1c nhau c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng nh\u01b0: Google Chrome Developer Tools, Vue.js Developer Tools,&#8230; \u0110i\u1ec1u n\u00e0y gi\u00fap g\u1ee1 l\u1ed7i \u0111\u1ed9 ph\u1ee9c t\u1ea1p \u0111\u1ec3 c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u v\u00e0 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>S\u1eed d\u1ee5ng v-if thay cho v-show khi \u0111i\u1ec1u ki\u1ec7n \u00edt thay \u0111\u1ed5i:<\/b><span style=\"font-weight: 400;\"> v-if s\u1ebd kh\u00f4ng render element n\u1ebfu \u0111i\u1ec1u ki\u1ec7n l\u00e0 false, gi\u00fap gi\u1ea3m t\u1ea3i cho DOM.<\/span><\/li>\n<\/ul>\n<h3><b>N\u1ebfu m\u1ed9t component Vue.js kh\u00f4ng c\u1eadp nh\u1eadt khi d\u1eef li\u1ec7u thay \u0111\u1ed5i, b\u1ea1n s\u1ebd ki\u1ec3m tra \u0111i\u1ec1u g\u00ec?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Khi component b\u1ecb l\u1ed7i kh\u00f4ng c\u1eadp nh\u1eadt d\u1eef li\u1ec7u, \u0111\u1ea7u ti\u00ean b\u1ea1n c\u1ea7n ch\u1eafc ch\u1eafn ki\u1ec3m tra v\u1ec1 c\u00e1c l\u1ed7i c\u01a1 b\u1ea3n nh\u01b0 l\u1ed7i \u0111\u00e1nh m\u00e1y, c\u1eadp nh\u1eadt \u0111\u00fang component, \u0111\u00fang trang ho\u1eb7c kh\u00f4ng v\u00f4 t\u00ecnh t\u1ea1o m\u1ed9t array m\u1edbi b\u1eb1ng m\u1ed9t object.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sau khi \u0111\u00e3 ki\u1ec3m tra c\u00e1c l\u1ed7i c\u01a1 b\u1ea3n nh\u01b0ng component v\u1eabn kh\u00f4ng c\u1eadp nh\u1eadt d\u1eef li\u1ec7u th\u00ec b\u1ea1n c\u00f3 th\u1ec3 x\u00e9t ti\u1ebfp \u0111\u1ebfn c\u00e1c m\u1ed9t s\u1ed1 l\u1ed7i nh\u01b0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ki\u1ec3m tra c\u00e1c bi\u1ebfn c\u00f3 ph\u1ea3n \u1ee9ng kh\u00f4ng, c\u00f3 th\u1ec3 do b\u1ea1n c\u1eadp nh\u1eadt bi\u1ebfn \u1edf m\u1ed9t component kh\u00e1c, s\u1eed d\u1ee5ng bi\u1ebfn trong computed prop kh\u00f4ng c\u1eadp nh\u1eadt, hay c\u1eadp nh\u1eadt Vuex nh\u01b0ng component kh\u00f4ng c\u1eadp nh\u1eadt.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110\u1ea3m b\u1ea3o c\u1eadp nh\u1eadt array v\u00e0 object m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c (\u0111\u1ed1i v\u1edbi Vue2).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng props tr\u1ef1c ti\u1ebfp n\u1ebfu b\u1ea1n thay \u0111\u1ed5i props nh\u01b0ng d\u1eef li\u1ec7u v\u1eabn ch\u01b0a c\u1eadp nh\u1eadt.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng computed props v\u1edbi Vuex, c\u00f3 th\u1ec3 x\u1ea3y ra trong tr\u01b0\u1eddng h\u1ee3p gi\u00e1 tr\u1ecb c\u1ee7a Vuex b\u1ecb thay \u0111\u1ed5i.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ch\u1eafc ch\u1eafn r\u1eb1ng b\u1ea1n kh\u00f4ng l\u00e0m thay \u0111\u1ed5i props ho\u1eb7c Vuex state, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 x\u1ea3y ra khi b\u1ea1n c\u1eadp nh\u1eadt gi\u00e1 tr\u1ecb c\u1ee7a props ho\u1eb7c Vuex state.\u00a0<\/span><\/li>\n<\/ul>\n<h3><b>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u khi s\u1eed d\u1ee5ng Vue.js?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">B\u1ea3o m\u1eadt l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng khi ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng Vue.js, \u0111\u1eb7c bi\u1ec7t khi \u1ee9ng d\u1ee5ng x\u1eed l\u00fd d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m nh\u01b0 th\u00f4ng tin ng\u01b0\u1eddi d\u00f9ng, thanh to\u00e1n, ho\u1eb7c d\u1eef li\u1ec7u doanh nghi\u1ec7p. M\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p gi\u00fap b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u khi s\u1eed d\u1ee5ng Vuejs c\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn nh\u01b0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Kh\u00f4ng l\u01b0u th\u00f4ng tin nh\u1ea1y c\u1ea3m tr\u00ean client-side, kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong localStorage ho\u1eb7c sessionStorage. Thay v\u00e0o \u0111\u00f3, h\u00e3y l\u01b0u tr\u1eef token tr\u00ean cookies c\u00f3 HttpOnly (\u0111\u01b0\u1ee3c g\u1eedi t\u1eeb server v\u00e0 kh\u00f4ng th\u1ec3 b\u1ecb truy c\u1eadp b\u1edfi JavaScript).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng HTTPS \u0111\u1ec3 m\u00e3 h\u00f3a d\u1eef li\u1ec7u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tr\u00e1nh XSS (Cross-Site Scripting) b\u1eb1ng c\u00e1ch sanitize input.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">B\u1ea3o v\u1ec7 API v\u00e0 d\u1eef li\u1ec7u backend.\u00a0<\/span><\/li>\n<\/ul>\n<h3><b>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh l\u1ed7i v\u00e0 debug m\u1ed9t \u1ee9ng d\u1ee5ng Vue.js k\u00edch th\u01b0\u1edbc l\u1edbn?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Debugging trong Vue.js l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng gi\u00fap ph\u00e1t hi\u1ec7n v\u00e0 kh\u1eafc ph\u1ee5c l\u1ed7i trong \u1ee9ng d\u1ee5ng, \u0111\u1eb7c bi\u1ec7t khi d\u1ef1 \u00e1n ng\u00e0y c\u00e0ng l\u1edbn. \u0110\u1ec3 x\u00e1c \u0111\u1ecbnh l\u1ed7i v\u00e0 debug, c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng m\u1ed9t s\u1ed1 c\u00e1ch nh\u01b0:<\/span><\/p>\n<h4><b>S\u1eed d\u1ee5ng Vue Devtool \u0111\u1ec3 theo d\u00f5i tr\u1ea1ng th\u00e1i v\u00e0 l\u1ed7i<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">Vue DevTools l\u00e0 c\u00f4ng c\u1ee5 ch\u00ednh th\u1ee9c c\u1ee7a Vue gi\u00fap ki\u1ec3m tra tr\u1ea1ng th\u00e1i c\u1ee7a component, d\u1eef li\u1ec7u reactive, Vuex\/Pinia store, route, event,&#8230;<\/span><\/p>\n<p><b>C\u00e1ch c\u00e0i \u0111\u1eb7t:<\/b><span style=\"font-weight: 400;\"> N\u1ebfu d\u00f9ng Chrome ho\u1eb7c Firefox, b\u1ea1n c\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t Vue DevTools t\u1eeb Chrome Web Store ho\u1eb7c Firefox Add-ons.<\/span><\/p>\n<p><b>C\u00e1ch s\u1eed d\u1ee5ng:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ki\u1ec3m tra component tree \u0111\u1ec3 theo d\u00f5i d\u1eef li\u1ec7u state v\u00e0 props.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Debug Vuex\/Pinia \u0111\u1ec3 xem l\u1ecbch s\u1eed thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Xem console logs \u0111\u1ec3 ph\u00e1t hi\u1ec7n l\u1ed7i li\u00ean quan \u0111\u1ebfn lifecycle hooks ho\u1eb7c d\u1eef li\u1ec7u b\u1ecb thay \u0111\u1ed5i kh\u00f4ng mong mu\u1ed1n.<\/span><\/li>\n<\/ul>\n<h4><b>S\u1eed d\u1ee5ng console.log(), debugger v\u00e0 breakpoints<\/b><\/h4>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>console.log():<\/b><span style=\"font-weight: 400;\"> D\u00f9ng \u0111\u1ec3 ki\u1ec3m tra gi\u00e1 tr\u1ecb bi\u1ebfn, d\u1eef li\u1ec7u props v\u00e0 state trong t\u1eebng b\u01b0\u1edbc x\u1eed l\u00fd logic.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>debugger: <\/b><span style=\"font-weight: 400;\">Ch\u00e8n v\u00e0o code \u0111\u1ec3 t\u1ea1m d\u1eebng th\u1ef1c thi, gi\u00fap ki\u1ec3m tra bi\u1ebfn tr\u1ef1c ti\u1ebfp trong tr\u00ecnh duy\u1ec7t DevTools.<\/span><\/li>\n<\/ul>\n<h3><b>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 b\u1ea3o v\u1ec7 route y\u00eau c\u1ea7u \u0111\u0103ng nh\u1eadp trong Vue Router?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Khi ph\u00e1t tri\u1ec3n m\u1ed9t \u1ee9ng d\u1ee5ng Vue.js c\u00f3 c\u00e1c trang ch\u1ec9 d\u00e0nh cho ng\u01b0\u1eddi d\u00f9ng \u0111\u00e3 \u0111\u0103ng nh\u1eadp (nh\u01b0 trang dashboard, qu\u1ea3n l\u00fd t\u00e0i kho\u1ea3n), b\u1ea1n c\u1ea7n thi\u1ebft l\u1eadp b\u1ea3o v\u1ec7 route \u0111\u1ec3 ng\u0103n ch\u1eb7n truy c\u1eadp tr\u00e1i ph\u00e9p. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Navigation Guards c\u1ee7a Vue Router \u0111\u1ec3 ki\u1ec3m tra tr\u1ea1ng th\u00e1i \u0111\u0103ng nh\u1eadp tr\u01b0\u1edbc khi cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp v\u00e0o m\u1ed9t route c\u1ee5 th\u1ec3.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Navigation Guards cung c\u1ea5p c\u00e1c hook nh\u01b0 beforeEach(), gi\u00fap b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra \u0111i\u1ec1u ki\u1ec7n tr\u01b0\u1edbc khi ng\u01b0\u1eddi d\u00f9ng \u0111i\u1ec1u h\u01b0\u1edbng \u0111\u1ebfn m\u1ed9t trang m\u1edbi.<\/span><\/p>\n<p><b>V\u00ed d\u1ee5: <\/b><span style=\"font-weight: 400;\">Ki\u1ec3m tra tr\u1ea1ng th\u00e1i \u0111\u0103ng nh\u1eadp tr\u01b0\u1edbc khi truy c\u1eadp c\u00e1c route y\u00eau c\u1ea7u quy\u1ec1n truy c\u1eadp.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">import { createRouter, createWebHistory } from 'vue-router';<\/span>\r\n<span style=\"font-weight: 400;\">import store from '@\/store';<\/span>\r\n<span style=\"font-weight: 400;\">import Login from '@\/views\/Login.vue';<\/span>\r\n<span style=\"font-weight: 400;\">import Dashboard from '@\/views\/Dashboard.vue';<\/span>\r\n\r\n<span style=\"font-weight: 400;\">const routes = [<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0{ path: '\/login', component: Login },<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0{\u00a0<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0path: '\/dashboard',\u00a0<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0component: Dashboard,\u00a0<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0meta: { requiresAuth: true } \/\/ \u0110\u00e1nh d\u1ea5u route y\u00eau c\u1ea7u \u0111\u0103ng nh\u1eadp\u00a0<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">];<\/span>\r\n\r\n<span style=\"font-weight: 400;\">const router = createRouter({<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0history: createWebHistory(),<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0routes<\/span>\r\n<span style=\"font-weight: 400;\">});<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ Ki\u1ec3m tra quy\u1ec1n truy c\u1eadp tr\u01b0\u1edbc khi v\u00e0o trang y\u00eau c\u1ea7u \u0111\u0103ng nh\u1eadp<\/span>\r\n<span style=\"font-weight: 400;\">router.beforeEach((to, from, next) =&gt; {<\/span>\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0const isAuthenticated = store.state.isAuthenticated; \/\/ Ki\u1ec3m tra tr\u1ea1ng th\u00e1i \u0111\u0103ng nh\u1eadp t\u1eeb Vuex\/Pinia ho\u1eb7c localStorage<\/span>\r\n\r\n<span style=\"font-weight: 400;\"> \u00a0if (to.meta.requiresAuth &amp;&amp; !isAuthenticated) {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0next('\/login'); \/\/ Chuy\u1ec3n h\u01b0\u1edbng v\u1ec1 trang \u0111\u0103ng nh\u1eadp n\u1ebfu ch\u01b0a \u0111\u0103ng nh\u1eadp<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0} else {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0next(); \/\/ Ti\u1ebfp t\u1ee5c \u0111i\u1ec1u h\u01b0\u1edbng n\u1ebfu h\u1ee3p l\u1ec7<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">});<\/span>\r\n\r\n<span style=\"font-weight: 400;\">export default router;<\/span><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"Tong_ket_cau_hoi_phong_van_VueJS\"><\/span><b>T\u1ed5ng k\u1ebft c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n VueJS<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u1ed9 30+ c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n VueJS tr\u00ean<span style=\"font-weight: 400;\"> kh\u00f4ng ch\u1ec9 ki\u1ec3m tra ki\u1ebfn th\u1ee9c v\u1ec1 c\u01a1 b\u1ea3n m\u00e0 c\u00f2n \u0111\u00e1nh gi\u00e1 t\u01b0 duy ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n. Vi\u1ec7c n\u1eafm v\u1eefng c\u00e1c kh\u00e1i ni\u1ec7m quan tr\u1ecdng v\u00e0 th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean s\u1ebd gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng v\u01b0\u1ee3t qua ph\u1ecfng v\u1ea5n c\u0169ng nh\u01b0 c\u01a1 h\u1ed9i m\u1edf r\u1ed9ng c\u01a1 h\u1ed9i ngh\u1ec1 nghi\u1ec7p t\u1ed1t h\u01a1n.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vuejs l\u00e0 m\u1ed9t trong nh\u1eefng framework JavaScript ph\u1ed5 bi\u1ebfn gi\u00fap ph\u00e1t tri\u1ec3n giao di\u1ec7n web nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3. C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Vuejs \u0111i k\u00e8m c\u00e2u tr\u1ea3 l\u1eddi chi ti\u1ebft s\u1ebd \u0111em \u0111\u1ebfn g\u00f3c nh\u00ecn to\u00e0n di\u1ec7n cho b\u1ea1n, \u0111\u1ed3ng th\u1eddi gi\u00fap b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c s\u1ef1 chu\u1ea9n b\u1ecb t\u1ed1t h\u01a1n cho bu\u1ed5i ph\u1ecfng [&hellip;]<\/p>\n","protected":false},"author":207,"featured_media":84748,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[109,105],"tags":[],"class_list":["post-84729","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chuyen-mon-it","category-phong-van-it"],"blocksy_meta":{"page_structure_type":"type-1","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Top 30+ c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n VueJS th\u01b0\u1eddng g\u1eb7p - ITviec Blog<\/title>\n<meta name=\"description\" content=\"B\u1ed9 c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n VueJS t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao c\u00f9ng m\u1ed9t s\u1ed1 d\u1ea1ng c\u00e2u h\u1ecfi x\u1eed l\u00fd t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf gi\u00fap Developer chu\u1ea9n b\u1ecb t\u1ed1t h\u01a1n.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/itviec.com\/blog\/cau-hoi-phong-van-vuejs\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Top 30+ c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n VueJS th\u01b0\u1eddng g\u1eb7p\" \/>\n<meta property=\"og:description\" content=\"Vuejs l\u00e0 m\u1ed9t trong nh\u1eefng framework JavaScript ph\u1ed5 bi\u1ebfn gi\u00fap ph\u00e1t tri\u1ec3n giao di\u1ec7n web nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3. 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