{"id":86498,"date":"2025-05-01T22:56:14","date_gmt":"2025-05-01T15:56:14","guid":{"rendered":"https:\/\/itviec1.uptech.vn\/?p=86498"},"modified":"2025-05-01T22:56:14","modified_gmt":"2025-05-01T15:56:14","slug":"the-template-html-la-gi","status":"publish","type":"post","link":"https:\/\/itviec.com\/blog\/the-template-html-la-gi\/","title":{"rendered":"Th\u1ebb Template HTML: Chi ti\u1ebft c\u00e1ch s\u1eed d\u1ee5ng (k\u00e8m v\u00ed d\u1ee5 c\u1ee5 th\u1ec3)"},"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\/the-template-html-la-gi\/#Gioi_thieu_ve_the_template_HTML\" >Gi\u1edbi thi\u1ec7u v\u1ec1 th\u1ebb template HTML<\/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\/the-template-html-la-gi\/#Thuoc_tinh_cua_the_template_HTML\" >Thu\u1ed9c t\u00ednh c\u1ee7a th\u1ebb template HTML<\/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\/the-template-html-la-gi\/#Vi_du_ve_cach_su_dung_the_template_HTML\" >V\u00ed d\u1ee5 v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng th\u1ebb template HTML<\/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\/the-template-html-la-gi\/#Cach_su_dung_the_trong_JavaScript_nhu_the_nao\" >C\u00e1ch s\u1eed d\u1ee5ng th\u1ebb &lt;template&gt; trong JavaScript nh\u01b0 th\u1ebf n\u00e0o?<\/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\/the-template-html-la-gi\/#Cach_su_dung_voi_framework\" >C\u00e1ch s\u1eed d\u1ee5ng &lt;template&gt; v\u1edbi framework<\/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\/the-template-html-la-gi\/#Uu_nhuoc_diem_khi_su_dung_the_template_HTML\" >\u01afu &amp; nh\u01b0\u1ee3c \u0111i\u1ec3m khi s\u1eed d\u1ee5ng th\u1ebb template HTML<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/itviec.com\/blog\/the-template-html-la-gi\/#Cau_hoi_thuong_gap_ve_the_template_HTML\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 th\u1ebb template HTML<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/itviec.com\/blog\/the-template-html-la-gi\/#Tong_ket_ve_the_template_HTML\" >T\u1ed5ng k\u1ebft v\u1ec1 th\u1ebb template HTML<\/a><\/li><\/ul><\/nav><\/div>\n<p><em><strong>Trong x\u00e2y d\u1ef1ng giao di\u1ec7n web, template HTML cho ph\u00e9p b\u1ea1n l\u01b0u tr\u1eef c\u00e1c \u0111o\u1ea1n m\u00e3 HTML \u201c\u1ea9n\u201d, kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb ngay khi t\u1ea3i trang, ch\u1ec9 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t b\u1eb1ng JavaScript. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng, \u1ee9ng d\u1ee5ng v\u00e0 nh\u1eefng l\u1ee3i \u00edch m\u00e0 th\u1ebb &lt;template&gt; mang l\u1ea1i cho l\u1eadp tr\u00ecnh front-end.<\/strong><\/em><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ecdc b\u00e0i vi\u1ebft sau \u0111\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3i \u0111\u00e1p chi ti\u1ebft h\u01a1n v\u1ec1:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">T\u1ed5ng quan v\u1ec1 th\u1ebb template trong HTML: C\u00fa ph\u00e1p, ti\u1ec7n \u00edch v\u00e0 nh\u1eefng tr\u00ecnh duy\u1ec7t h\u1ed7 tr\u1ee3<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">M\u1ed9t s\u1ed1 thu\u1ed9c t\u00ednh th\u01b0\u1eddng g\u1eb7p khi s\u1eed d\u1ee5ng &lt;template&gt;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">V\u00ed d\u1ee5 v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng th\u1ebb &lt;template&gt; trong HTML\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1ch s\u1eed d\u1ee5ng th\u1ebb &lt;template&gt; trong JavaScript\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1ch s\u1eed d\u1ee5ng th\u1ebb &lt;template&gt; v\u1edbi framework\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Nh\u1eefng \u01b0u &amp; nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a th\u1ebb &lt;template&gt;<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Gioi_thieu_ve_the_template_HTML\"><\/span><b>Gi\u1edbi thi\u1ec7u v\u1ec1 th\u1ebb template HTML<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Th\u1ebb &lt;template&gt; l\u00e0 m\u1ed9t ph\u1ea7n t\u1eed HTML5 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 l\u01b0u tr\u1eef c\u00e1c \u0111o\u1ea1n m\u00e3 HTML kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb ngay khi trang \u0111\u01b0\u1ee3c t\u1ea3i. Ph\u1ea7n t\u1eed n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c sao ch\u00e9p v\u00e0 ch\u00e8n v\u00e0o file HTML.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">N\u1ed9i dung trong th\u1ebb &lt;template&gt; s\u1ebd \u0111\u01b0\u1ee3c \u1ea9n kh\u1ecfi m\u00e1y kh\u00e1ch v\u00ec n\u00f3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef \u1edf ph\u00eda m\u00e1y kh\u00e1ch. C\u00e1c m\u1eabu n\u00e0y s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb trong tr\u00ecnh duy\u1ec7t cho \u0111\u1ebfn khi b\u1ea1n k\u00edch ho\u1ea1t ch\u00fang b\u1eb1ng JavaScript. JavaScript \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u1ea5y n\u1ed9i dung t\u1eeb m\u1ed9t m\u1eabu v\u00e0 th\u00eam v\u00e0o trang web.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Vi\u1ec7c t\u1ea1o &lt;template&gt; c\u0169ng r\u1ea5t \u0111\u01a1n gi\u1ea3n. B\u1ea1n ch\u1ec9 c\u1ea7n ch\u1ec9 \u0111\u1ecbnh ph\u1ea7n t\u1eed &lt;template&gt; v\u00e0 cung c\u1ea5p cho n\u00f3 m\u1ed9t ID ph\u00f9 h\u1ee3p. Vi\u1ec7c g\u00e1n m\u1ed9t ID cho ph\u1ea7n t\u1eed &lt;template&gt; gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng truy xu\u1ea5t v\u00e0 t\u00e1i s\u1eed d\u1ee5ng n\u1ed9i dung c\u1ee7a n\u00f3 b\u1eb1ng JavaScript.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">&lt;template id=\"content-wrapper\"&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&lt;div&gt;render this content&lt;\/div&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;\/template&gt;<\/span><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"Thuoc_tinh_cua_the_template_HTML\"><\/span><b>Thu\u1ed9c t\u00ednh c\u1ee7a th\u1ebb template HTML<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Th\u1ebb &lt;template&gt; h\u1ed7 tr\u1ee3 c\u00e1c thu\u1ed9c t\u00ednh to\u00e0n c\u1ee5c (global attribute) nh\u01b0 id, class, style,&#8230; Ch\u00fang gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng \u0111i\u1ec1u ch\u1ec9nh c\u00e1c ch\u1ee9c n\u0103ng nh\u01b0 ki\u1ec3u d\u00e1ng, nh\u1eadn d\u1ea1ng, kh\u1ea3 n\u0103ng truy c\u1eadp v\u00e0 t\u01b0\u01a1ng t\u00e1c, gi\u00fap c\u1ea3i thi\u1ec7n giao di\u1ec7n v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a trang web.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">B\u00ean c\u1ea1nh \u0111\u00f3, &lt;template&gt; c\u0169ng h\u1ed7 tr\u1ee3 c\u00e1c thu\u1ed9c t\u00ednh \u0111\u1eb7c bi\u1ec7t li\u00ean quan \u0111\u1ebfn Declarative Shadow DOM, c\u1ee5 th\u1ec3:<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Thu\u1ed9c t\u00ednh<\/b><\/td>\n<td><b>M\u00f4 t\u1ea3<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">shadowrootmode<\/span><\/td>\n<td>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">Th\u1ebb &lt;template&gt; c\u00f3 th\u1ec3\u00a0 khai b\u00e1o n\u1ed9i dung cho m\u1ed9t ShadowRoot s\u1ebd \u0111\u01b0\u1ee3c t\u1ea1o ra tr\u00ean ph\u1ea7n t\u1eed cha. \u0110\u00e2y l\u00e0 c\u00e1ch khai b\u00e1o \u0111\u1ec3 thay th\u1ebf cho vi\u1ec7c g\u1ecdi Element.attachShadow() trong JavaScript. N\u00f3 c\u0169ng h\u1ed7 tr\u1ee3 c\u00e1c gi\u00e1 tr\u1ecb gi\u1ed1ng nh\u01b0 khi g\u1ecdi h\u00e0m \u0111\u00f3:<\/span><\/p>\n<ul style=\"text-align: left;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>open: <\/b><span style=\"font-weight: 400;\">Cho ph\u00e9p truy c\u1eadp shadow DOM b\u00ean trong t\u1eeb JavaScript. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>closed:<\/b><span style=\"font-weight: 400;\"> \u1ea8n shadow DOM n\u1ed9i b\u1ed9, kh\u00f4ng th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c t\u1eeb JavaScript b\u00ean ngo\u00e0i.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">shadowrootclonable<\/span><\/td>\n<td>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">Thi\u1ebft l\u1eadp gi\u00e1 tr\u1ecb thu\u1ed9c t\u00ednh clonable c\u1ee7a ShadowRoot \u0111\u01b0\u1ee3c t\u1ea1o t\u1eeb ph\u1ea7n t\u1eed n\u00e0y th\u00e0nh true.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">Khi b\u1eadt thu\u1ed9c t\u00ednh n\u00e0y, n\u1ebfu b\u1ea1n sao ch\u00e9p ph\u1ea7n t\u1eed ch\u1ee9a shadow DOM (t\u1ee9c l\u00e0 ph\u1ea7n t\u1eed cha c\u1ee7a th\u1ebb &lt;template&gt;) b\u1eb1ng Node.cloneNode() ho\u1eb7c Document.importNode(), th\u00ec b\u1ea3n sao c\u0169ng s\u1ebd bao g\u1ed3m ShadowRoot gi\u1ed1ng b\u1ea3n g\u1ed1c.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">shadowrootdelegatesfocus<\/span><\/td>\n<td>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">Thi\u1ebft l\u1eadp gi\u00e1 tr\u1ecb thu\u1ed9c t\u00ednh delegatesFocus c\u1ee7a ShadowRoot \u0111\u01b0\u1ee3c t\u1ea1o t\u1eeb ph\u1ea7n t\u1eed n\u00e0y th\u00e0nh true.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">Khi \u0111\u01b0\u1ee3c \u0111\u1eb7t, tr\u00ecnh duy\u1ec7t s\u1ebd t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n focus \u0111\u1ebfn ph\u1ea7n t\u1eed \u0111\u1ea7u ti\u00ean c\u00f3 th\u1ec3 focus trong Shadow DOM khi ph\u1ea7n t\u1eed ch\u1ee9a n\u00f3 (shadow host) nh\u1eadn focus.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">shadowrootserializable<\/span><\/td>\n<td>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">Gi\u00e1 tr\u1ecb c\u1ee7a thu\u1ed9c t\u00ednh c\u00f3 th\u1ec3 tu\u1ea7n t\u1ef1 h\u00f3a c\u1ee7a shadowroot \u0111\u01b0\u1ee3c t\u1ea1o b\u1eb1ng thu\u1ed9c t\u00ednh n\u00e0y th\u00e0nh true.\u00a0<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">N\u1ebfu \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp, shadow root c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tu\u1ea7n t\u1ef1 h\u00f3a b\u1eb1ng c\u00e1ch g\u1ecdi c\u00e1c ph\u01b0\u01a1ng th\u1ee9c Element.getHTML() ho\u1eb7c ShadowRoot.getHTML() v\u1edbi tham s\u1ed1 options.serializableShadowRoots \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u00e0nh true.<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Vi_du_ve_cach_su_dung_the_template_HTML\"><\/span><b>V\u00ed d\u1ee5 v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng th\u1ebb template HTML<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 v\u00ed d\u1ee5 v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng th\u1ebb &lt;template&gt; trong HTML:<\/span><\/p>\n<h3><b>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng th\u1ebb template HTML 1<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng &lt;template&gt; \u0111\u1ec3 gi\u1eef m\u1ed9t s\u1ed1 n\u1ed9i dung s\u1ebd b\u1ecb \u1ea9n khi t\u1ea3i trang, sau \u0111\u00f3 s\u1eed d\u1ee5ng JavaScript \u0111\u1ec3 hi\u1ec3n th\u1ecb n\u1ed9i dung.\u00a0<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">&lt;!DOCTYPE html&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;html&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;body&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;h1&gt;The template Element&lt;\/h1&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;p&gt;Click the button below to display the hidden content from the template element.&lt;\/p&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;button onclick=\"showContent()\"&gt;Show hidden content&lt;\/button&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;template&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0&lt;h2&gt;Flower&lt;\/h2&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0&lt;img src=\"img_white_flower.jpg\" width=\"214\" height=\"204\"&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;\">function showContent() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0const temp = document.getElementsByTagName(\"template\")[0];<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0const clon = temp.content.cloneNode(true);<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0document.body.appendChild(clon);<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/script&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;\/body&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/html&gt;<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb c\u1ee7a \u0111o\u1ea1n m\u00e3 tr\u00ean:<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-86506\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-1-vippro.jpg\" alt=\"th\u1ebb template html - itviec blog\" width=\"678\" height=\"166\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-1-vippro.jpg 678w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-1-vippro-300x73.jpg 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-1-vippro-640x157.jpg 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-1-vippro-200x49.jpg 200w\" sizes=\"auto, (max-width: 678px) 100vw, 678px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb khi nh\u1ea5n button \u201cShow hidden content\u201d:<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-86505\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-2-vippro.jpg\" alt=\"th\u1ebb template html - itviec blog\" width=\"798\" height=\"625\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-2-vippro.jpg 798w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-2-vippro-300x235.jpg 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-2-vippro-768x602.jpg 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-2-vippro-200x157.jpg 200w\" sizes=\"auto, (max-width: 798px) 100vw, 798px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Trong v\u00ed d\u1ee5 tr\u00ean, c\u00f3 th\u1ec3 th\u1ea5y:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">&lt;template&gt; \u0111\u00e3 gi\u1eef n\u1ed9i dung b\u00ean trong kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb cho \u0111\u1ebfn khi b\u1ea1n g\u1ecdi n\u00f3 b\u1eb1ng JavaScript.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Khi b\u1ea1n b\u1ea5m v\u00e0o n\u00fat &lt;button&gt;, h\u00e0m showContent() \u0111\u01b0\u1ee3c g\u1ecdi.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Trong h\u00e0m showContent() s\u1ebd th\u1ef1c hi\u1ec7n:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">getElementsByTagName(&#8220;template&#8221;)[0] l\u1ea5y ra ph\u1ea7n t\u1eed &lt;template&gt; \u0111\u1ea7u ti\u00ean tr\u00ean trang<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">.content.cloneNode(true) sao ch\u00e9p to\u00e0n b\u1ed9 n\u1ed9i dung c\u1ee7a template<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">appendChild(clon) ch\u00e8n b\u1ea3n sao \u0111\u00f3 v\u00e0o cu\u1ed1i th\u1ebb &lt;body&gt;.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb, khi b\u1ea1n nh\u1ea5n v\u00e0o n\u00fat \u201cShow hidden content\u201d, h\u00ecnh \u1ea3nh b\u00f4ng hoa s\u1ebd xu\u1ea5t hi\u1ec7n.<\/span><\/p>\n<h3><b>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng th\u1ebb template HTML 2<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng danh s\u00e1ch kh\u00f4ng theo th\u1ee9 t\u1ef1 (unordered list) c\u00e1c b\u00e0i vi\u1ebft \u0111\u00e3 \u0111\u01b0\u1ee3c \u1ea9n \u0111\u1ec3 hi\u1ec3n th\u1ecb b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng th\u1ebb &lt;template&gt;.\u00a0<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">&lt;!DOCTYPE html&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;html&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;body&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;h1&gt;ITviec&lt;\/h1&gt;<\/span>\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&lt;h3&gt;HTML template tag&lt;\/h3&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;p&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0N\u1ed9i dung b\u00ean trong th\u1ebb m\u1eabu s\u1ebd b\u1ecb \u1ea9n kh\u1ecfi m\u00e1y kh\u00e1ch.<\/span>\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&lt;\/p&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;!-- Html script tag starts here --&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;template id=\"checkbox-template\"&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;h2&gt;ITviec: Checkbox HTML: C\u00e1ch ch\u00e8n v\u00e0 t\u00f9y ch\u1ec9nh checkbox trong HTML&lt;\/h2&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;h4&gt;T\u1ed5ng quan v\u1ec1 checkbox HTML &lt;\/h4&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;ul&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;li&gt;Heading 1&lt;\/li&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;li&gt;Heading 2&lt;\/li&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;li&gt;Heading 3&lt;\/li&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;li&gt;Heading 4&lt;\/li&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;\/ul&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;\/template&gt;<\/span>\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&lt;!-- Html template tag ends here --&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&lt;p&gt;K\u1ebft th\u00fac v\u00ed d\u1ee5 v\u1ec1 th\u1ebb template&lt;\/p&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;\/body&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;\/html&gt;<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb c\u1ee7a \u0111o\u1ea1n m\u00e3 tr\u00ean:<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-86504\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-3-vippro.jpg\" alt=\"th\u1ebb template html - itviec blog\" width=\"625\" height=\"225\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-3-vippro.jpg 625w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-3-vippro-300x108.jpg 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-3-vippro-200x72.jpg 200w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u1ede v\u00ed d\u1ee5 tr\u00ean cho th\u1ea5y n\u1ed9i dung trong &lt;template&gt; kh\u00f4ng hi\u1ec3n th\u1ecb ngay m\u00e0 ch\u1ec9 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb khi b\u1ea1n s\u1eed d\u1ee5ng th\u00eam JavaScript.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Th\u1ebb &lt;template&gt; ch\u1ee9a m\u1ed9t \u0111o\u1ea1n HTML v\u1edbi ti\u00eau \u0111\u1ec1, ph\u1ee5 \u0111\u1ec1, v\u00e0 danh s\u00e1ch. Tuy nhi\u00ean, n\u1ed9i dung n\u00e0y kh\u00f4ng hi\u1ec3n th\u1ecb ra ngo\u00e0i v\u00ec ch\u01b0a \u0111\u01b0\u1ee3c g\u1ecdi b\u1eb1ng JavaScript.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110\u00e2y l\u00e0 n\u1ed9i dung &#8220;ch\u1edd s\u1eb5n&#8221;, ch\u1ec9 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb n\u1ebfu b\u1ea1n d\u00f9ng JavaScript \u0111\u1ec3 l\u1ea5y n\u00f3 ra.<\/span><\/li>\n<\/ul>\n<h3><b>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng th\u1ebb template HTML 3<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng JavaScript \u0111\u1ec3 hi\u1ec3n th\u1ecb n\u1ed9i dung &lt;template&gt;:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">&lt;!DOCTYPE html&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;html&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">&lt;body&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;h1&gt;ITviec&lt;\/h1&gt;<\/span>\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&lt;h3&gt;HTML template tag&lt;\/h3&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&lt;p&gt;Nh\u1ea5n v\u00e0o n\u00fat \u0111\u1ec3 l\u1ea5y n\u1ed9i dung t\u1eeb m\u1eabu v\u00e0 hi\u1ec3n th\u1ecb tr\u00ean trang web.&lt;\/p&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&lt;button onclick=\"myGeeks()\"&gt; Show content &lt;\/button&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;!-- Html template tag starts here --&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;template id=\"template-content\"&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;h2&gt;ITviec&lt;\/h2&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;img src=<\/span>\r\n<span style=\"font-weight: 400;\">\"https:\/\/itviec.com\/assets\/logo-itviec-4492a2f2577a15a0a1d55444c21c0fa55810822b3b189fc689b450fb62ce0b5b.png\"&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;br&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Content Writer:<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&lt;input type=\"text\" placeholder=\"author name\"&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;\/template&gt;<\/span>\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0&lt;!-- Html template tag ends here --&gt;<\/span>\r\n\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;!-- Script to display the content of template tag --&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;script&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0function myGeeks() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0const t = document.getElementById(\"template-content\");<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0const clone = t.content.cloneNode(true);<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0document.body.appendChild(clone);<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;\/script&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/body&gt;<\/span>\r\n<span style=\"font-weight: 400;\">&lt;\/html&gt;<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb c\u1ee7a \u0111o\u1ea1n m\u00e3 tr\u00ean:<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-86503\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-4-vippro.jpg\" alt=\"th\u1ebb template html - itviec blog\" width=\"718\" height=\"217\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-4-vippro.jpg 718w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-4-vippro-300x91.jpg 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-4-vippro-640x193.jpg 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-4-vippro-200x60.jpg 200w\" sizes=\"auto, (max-width: 718px) 100vw, 718px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb khi nh\u1ea5n button \u201cShow content\u201d:<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-86502\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-5-vippro.jpg\" alt=\"th\u1ebb template html - itviec blog\" width=\"549\" height=\"439\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-5-vippro.jpg 549w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-5-vippro-300x240.jpg 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/template-html-5-vippro-200x160.jpg 200w\" sizes=\"auto, (max-width: 549px) 100vw, 549px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u1ede v\u00ed d\u1ee5 tr\u00ean, c\u00f3 th\u1ec3 th\u1ea5y:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Khi ng\u01b0\u1eddi d\u00f9ng b\u1ea5m n\u00fat &lt;button&gt;, tr\u00ecnh duy\u1ec7t s\u1ebd g\u1ecdi h\u00e0m JavaScript myGeeks().<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">H\u00e0m myGeeks() s\u1ebd l\u1ea5y ph\u1ea7n t\u1eed &lt;template&gt; \u0111\u1ea7u ti\u00ean tr\u00ean trang. T\u1ea1o b\u1ea3n sao n\u1ed9i dung b\u00ean trong template (cloneNode(true) l\u00e0 sao ch\u00e9p to\u00e0n b\u1ed9). Ch\u00e8n b\u1ea3n sao \u0111\u00f3 v\u00e0o cu\u1ed1i th\u1ebb &lt;body&gt; \u0111\u1ec3 hi\u1ec3n th\u1ecb ra tr\u00ecnh duy\u1ec7t.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cach_su_dung_the_trong_JavaScript_nhu_the_nao\"><\/span><b>C\u00e1ch s\u1eed d\u1ee5ng th\u1ebb &lt;template&gt; trong JavaScript nh\u01b0 th\u1ebf n\u00e0o?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 s\u1eed d\u1ee5ng th\u1ebb template trong JavaScript, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng th\u1ee9c querySelector \u0111\u1ec3 ch\u1ecdn ph\u1ea7n t\u1eed template. Sau \u0111\u00f3, s\u1eed d\u1ee5ng thu\u1ed9c t\u00ednh content \u0111\u1ec3 truy c\u1eadp n\u1ed9i dung c\u1ee7a &lt;template&gt;.\u00a0<\/span><\/p>\n<blockquote><p><i><span style=\"font-weight: 400;\">Xem th\u00eam: <\/span><\/i><strong><a href=\"https:\/\/itviec.com\/blog\/javascript-la-gi\/\" target=\"_blank\" rel=\"noopener\"><i>JavaScript l\u00e0 g\u00ec? H\u1ecdc JavaScript c\u01a1 b\u1ea3n v\u1edbi l\u1ed9 tr\u00ecnh d\u1ec5 hi\u1ec3u nh\u1ea5t<\/i><\/a><\/strong><\/p><\/blockquote>\n<p><span style=\"font-weight: 400;\">Sau \u0111\u00e2y l\u00e0 v\u00ed d\u1ee5 v\u1ec1 c\u00e1ch b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng th\u1ebb template trong JavaScript.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">\/\/ Ch\u1ecdn th\u00e0nh ph\u1ea7n template<\/span>\r\n<span style=\"font-weight: 400;\">let template = document.querySelector('#item-template');<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ Truy c\u1eadp v\u00e0o n\u1ed9i dung template<\/span>\r\n<span style=\"font-weight: 400;\">let templateContent = template.content;<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ T\u1ea1o m\u1ed9t th\u00e0nh ph\u1ea7n DOM m\u1edbi s\u1eed d\u1ee5ng template<\/span>\r\n<span style=\"font-weight: 400;\">let newItem = document.importNode(templateContent, true);<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ C\u1eadp nh\u1eadt text c\u1ee7a th\u00e0nh ph\u1ea7n m\u1edbi<\/span>\r\n<span style=\"font-weight: 400;\">newItem.querySelector('.item-name').textContent = 'Item 1';<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ Th\u00eam th\u00e0nh ph\u1ea7n m\u1edbi v\u00e0o trang<\/span>\r\n<span style=\"font-weight: 400;\">document.querySelector('#items').appendChild(newItem);<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">\u1ede v\u00ed d\u1ee5 tr\u00ean, c\u00f3 th\u1ec3 th\u1ea5y:<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Ph\u01b0\u01a1ng th\u1ee9c querySelector \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ecdn ph\u1ea7n t\u1eed template c\u00f3 id l\u00e0 item-template.\u00a0<\/span><\/li>\n<li><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng thu\u1ed9c t\u00ednh content \u0111\u1ec3 truy c\u1eadp n\u1ed9i dung c\u1ee7a ph\u1ea7n t\u1eed m\u1eabu, l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng DocumentFragment.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng ph\u01b0\u01a1ng th\u1ee9c importNode \u0111\u1ec3 t\u1ea1o ph\u1ea7n t\u1eed DOM m\u1edbi d\u1ef1a tr\u00ean &lt;template&gt;.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Cu\u1ed1i c\u00f9ng, s\u1eed d\u1ee5ng ph\u01b0\u01a1ng th\u1ee9c querySelector \u0111\u1ec3 ch\u1ecdn &lt;span&gt; c\u00f3 class l\u00e0 item-name v\u00e0 s\u1eed d\u1ee5ng thu\u1ed9c t\u00ednh textContent \u0111\u1ec3 c\u1eadp nh\u1eadt v\u0103n b\u1ea3n c\u1ee7a ph\u1ea7n t\u1eed.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng th\u00eam ph\u01b0\u01a1ng th\u1ee9c appendChild \u0111\u1ec3 th\u00eam ph\u1ea7n t\u1eed m\u1edbi v\u00e0o trang.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cach_su_dung_voi_framework\"><\/span><b>C\u00e1ch s\u1eed d\u1ee5ng &lt;template&gt; v\u1edbi framework<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Th\u1ebb &lt;template&gt; c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi framework nh\u01b0 <\/span><a href=\"https:\/\/itviec.com\/blog\/reactjs-la-gi\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">React<\/span><\/a><span style=\"font-weight: 400;\">. Tuy nhi\u00ean, React x\u1eed l\u00fd c\u00e1c ph\u1ea7n t\u1eed n\u00e0y theo c\u00e1ch kh\u00e1c. C\u00f4ng d\u1ee5ng c\u1ee7a th\u1ebb &lt;template&gt; kh\u00f4ng ph\u1ea3i l\u00e0 hi\u1ec3n th\u1ecb c\u00e1c ph\u1ea7n t\u1eed con, m\u00e0 l\u00e0 x\u1eed l\u00fd nh\u01b0 v\u0103n b\u1ea3n ch\u01b0a ph\u00e2n t\u00edch c\u00fa ph\u00e1p. Tr\u00ecnh duy\u1ec7t ph\u00e2n t\u00edch c\u00fa ph\u00e1p ch\u1ec9 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng \u0111\u00f3 l\u00e0 HTML h\u1ee3p l\u1ec7.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tuy nhi\u00ean, vi\u1ec7c s\u1eed d\u1ee5ng &lt;template&gt; trong React kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb. Ngo\u00e0i ra, vi\u1ec7c s\u1eed d\u1ee5ng dangerouslySetInnerHTML c\u00f3 th\u1ec3 g\u00e2y ra XSS n\u1ebfu d\u1eef li\u1ec7u kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.\u00a0<\/span><\/p>\n<blockquote><p><i><span style=\"font-weight: 400;\">Xem th\u00eam: <\/span><\/i><strong><a href=\"https:\/\/itviec.com\/blog\/framework-la-gi-top-framework-pho-bien-nhat\/\" target=\"_blank\" rel=\"noopener\"><i>Framework l\u00e0 g\u00ec? Top 15+ framework web, mobile ph\u1ed5 bi\u1ebfn<\/i><\/a><\/strong><\/p><\/blockquote>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 s\u1eed d\u1ee5ng th\u1ebb n\u00e0y trong React, b\u1ea1n s\u1ebd ph\u1ea3i \u0111\u1eb7t n\u1ed9i dung c\u1ee7a n\u00f3 d\u01b0\u1edbi d\u1ea1ng chu\u1ed7i.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">function Template({ children, ...attrs }) {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0return (<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;template<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0{...attrs}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0dangerouslySetInnerHTML={{ __html: children }}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\/&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0);<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Sau \u0111\u00f3, React t\u1ea1o t\u1ea5t c\u1ea3 c\u00e1c th\u1ebb con d\u01b0\u1edbi d\u1ea1ng c\u00e1c ph\u1ea7n t\u1eed node nh\u01b0ng tr\u00ecnh duy\u1ec7t s\u1ebd quy\u1ebft \u0111\u1ecbnh ph\u1ea3i l\u00e0m g\u00ec. B\u1ea5t c\u1ee9 khi n\u00e0o b\u1ea1n c\u1ea7n s\u1eed d\u1ee5ng &lt;template&gt;, b\u1ea1n c\u1ea7n l\u01b0u \u00fd r\u1eb1ng n\u1ed9i dung b\u00ean trong ph\u1ea3i n\u1eb1m trong d\u1ea5u ngo\u1eb7c k\u00e9p v\u00ec n\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t chu\u1ed7i.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">render() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0return (<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;Template&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0{'&lt;div&gt;some content&lt;\/div&gt;'}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0&lt;\/Template&gt;<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0)<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"Uu_nhuoc_diem_khi_su_dung_the_template_HTML\"><\/span><b>\u01afu &amp; nh\u01b0\u1ee3c \u0111i\u1ec3m khi s\u1eed d\u1ee5ng th\u1ebb template HTML<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Th\u1ebb &lt;template&gt; \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi b\u1ea1n mu\u1ed1n t\u00e1ch bi\u1ec7t n\u1ed9i dung ch\u01b0a \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb v\u1edbi giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng cho \u0111\u1ebfn khi c\u1ea7n. Tuy nhi\u00ean, th\u1ebb &lt;template&gt; c\u00f3 c\u1ea3 \u01b0u \u0111i\u1ec3m l\u1eabn h\u1ea1n ch\u1ebf m\u00e0 b\u1ea1n c\u1ea7n n\u1eafm r\u00f5 tr\u01b0\u1edbc khi \u00e1p d\u1ee5ng v\u00e0o d\u1ef1 \u00e1n th\u1ef1c t\u1ebf.<\/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>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">H\u1ed7 tr\u1ee3 c\u1ea3 thu\u1ed9c t\u00ednh s\u1ef1 ki\u1ec7n (event attributes) v\u00e0 to\u00e0n c\u1ee5c (global attributes) trong HTML.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Gi\u00fap l\u1eadp tr\u00ecnh vi\u00ean t\u1ea1o ra c\u00e1c \u0111\u00e1nh d\u1ea5u c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">H\u1ed7 tr\u1ee3 trong nhi\u1ec1u tr\u00ecnh duy\u1ec7t (Google Chrome, Microsoft Edge, Mozilla Firefox, Apple Safari, Opera).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong framework frontend.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u su\u1ea5t trang web.<\/span><\/li>\n<\/ul>\n<\/td>\n<td>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ph\u1ee5 thu\u1ed9c v\u00e0o JavaScript.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">N\u1ebfu b\u1ea1n t\u1eaft JavaScript kh\u1ecfi tr\u00ecnh duy\u1ec7t s\u1ebd kh\u00f4ng th\u1ec3 xem n\u1ed9i dung b\u00ean trong &lt;template&gt;.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">G\u1eb7p v\u1ea5n \u0111\u1ec1 v\u1ec1 kh\u1ea3 n\u0103ng truy c\u1eadp, kh\u00f4ng t\u01b0\u01a1ng th\u00edch ho\u00e0n to\u00e0n v\u1edbi c\u00e1c tr\u00ecnh duy\u1ec7t r\u1ea5t c\u0169.\u00a0<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Cau_hoi_thuong_gap_ve_the_template_HTML\"><\/span><b>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 th\u1ebb template HTML<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>Th\u1ebb &lt;template&gt; c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ngo\u00e0i file HTML kh\u00f4ng?<\/b><\/h3>\n<p><b>C\u00e2u tr\u1ea3 l\u1eddi l\u00e0 c\u00f3<\/b><span style=\"font-weight: 400;\">, nh\u01b0ng s\u1ebd \u0111i k\u00e8m v\u1edbi \u0111i\u1ec1u ki\u1ec7n. Th\u1ebb &lt;template&gt; th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong file HTML ti\u00eau chu\u1ea9n, tuy nhi\u00ean b\u1ea1n v\u1eabn c\u00f3 th\u1ec3 nh\u00fang n\u00f3 v\u00e0o file JavaScript th\u00f4ng qua c\u00e1ch t\u1ea1o chu\u1ed7i HTML trong code v\u00e0 ch\u00e8n v\u00e0o DOM.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">D\u00f9 v\u1eady, c\u00e1ch ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb nh\u1ea5t v\u1eabn l\u00e0 s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp trong file HTML ho\u1eb7c trong c\u00e1c file HTML \u0111\u01b0\u1ee3c t\u1ea3i \u0111\u1ed9ng qua JavaScript (<\/span><a href=\"https:\/\/itviec.com\/blog\/ajax-la-gi\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">AJAX<\/span><\/a><span style=\"font-weight: 400;\"> ho\u1eb7c fetch).<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">void async function () {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\/\/get the imported document in templates:<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0var templates = document.createElement( 'template' )<\/span>\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0templates.innerHTML = await ( await fetch( 'templates.html' ) ).text()<\/span>\r\n\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\/\/fetch template2 1 and 2:<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0var template1 = templates.content.querySelector( '#t1' )\u00a0<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0var template2 = templates.content.querySelector( '#t2' )\u00a0<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0console.log( template2 )<\/span>\r\n<span style=\"font-weight: 400;\">} ()<\/span><\/pre>\n<h3><b>N\u1ed9i dung b\u00ean trong th\u1ebb &lt;template&gt; c\u00f3 hi\u1ec3n th\u1ecb trong &#8220;View Source&#8221; kh\u00f4ng?<\/b><\/h3>\n<p><b>C\u00e2u tr\u1ea3 l\u1eddi l\u00e0 C\u00f3<\/b><span style=\"font-weight: 400;\">. Khi b\u1ea1n xem &#8220;View Source&#8221; (Xem ngu\u1ed3n trang), n\u1ed9i dung trong th\u1ebb &lt;template&gt; v\u1eabn s\u1ebd hi\u1ec3n th\u1ecb, b\u1edfi v\u00ec \u0111\u00e2y l\u00e0 c\u00e1ch tr\u00ecnh duy\u1ec7t hi\u1ec3n th\u1ecb n\u1ed9i dung g\u1ed1c c\u1ee7a file HTML. Tuy nhi\u00ean, n\u1ed9i dung b\u00ean trong th\u1ebb &lt;template&gt; s\u1ebd kh\u00f4ng hi\u1ec3n th\u1ecb tr\u00ean giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng (UI) khi trang \u0111\u01b0\u1ee3c t\u1ea3i, tr\u1eeb khi c\u00f3 JavaScript can thi\u1ec7p v\u00e0 ch\u00e8n n\u00f3 v\u00e0o DOM.<\/span><\/p>\n<h3><b>N\u00ean \u0111\u1eb7t th\u1ebb &lt;template&gt; \u1edf \u0111\u00e2u trong HTML?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1eb7t &lt;template&gt; trong <\/span><b>ph\u1ea7n \u0111\u1ea7u (head section) ho\u1eb7c trong ph\u1ea7n th\u00e2n (body) c\u1ee7a trang HTML<\/b><span style=\"font-weight: 400;\">, t\u00f9y theo c\u00e1ch n\u00e0o thu\u1eadn ti\u1ec7n h\u01a1n \u0111\u1ed1i v\u1edbi b\u1ea1n. Ngo\u00e0i ra, &lt;template&gt; c\u00f3 th\u1ec3 ch\u1ee9a b\u1ea5t k\u1ef3 m\u00e3 \u0111\u00e1nh d\u1ea5u HTML h\u1ee3p l\u1ec7 n\u00e0o, bao g\u1ed3m c\u00e1c ph\u1ea7n t\u1eed nh\u01b0 &lt;style&gt; v\u00e0 &lt;script&gt; hay th\u1eadm ch\u00ed c\u1ea3 &lt;template&gt;.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tong_ket_ve_the_template_HTML\"><\/span><b>T\u1ed5ng k\u1ebft v\u1ec1 th\u1ebb template HTML<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Th\u1ebb <\/span><b>template HTML<\/b><span style=\"font-weight: 400;\"> l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 gi\u00fap t\u0103ng t\u00ednh linh ho\u1ea1t trong thi\u1ebft k\u1ebf giao di\u1ec7n web hi\u1ec7n \u0111\u1ea1i. Khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch, th\u1ebb &lt;template&gt; kh\u00f4ng ch\u1ec9 t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t m\u00e0 c\u00f2n gi\u00fap m\u00e3 HTML tr\u1edf n\u00ean g\u1ecdn g\u00e0ng, d\u1ec5 qu\u1ea3n l\u00fd v\u00e0 m\u1edf r\u1ed9ng trong c\u00e1c d\u1ef1 \u00e1n ph\u1ee9c t\u1ea1p.<\/span><\/p>\n<blockquote><p><i><span style=\"font-weight: 400;\">Xem th\u00eam: <\/span><\/i><a href=\"https:\/\/itviec.com\/blog\/html-la-gi\/\" target=\"_blank\" rel=\"noopener\"><i><span style=\"font-weight: 400;\"><strong>Gi\u1ea3i \u0111\u00e1p \u201ct\u1ea5t t\u1ea7n t\u1eadt\u201d nh\u1eefng \u0111i\u1ec1u c\u1ea7n bi\u1ebft v\u1ec1 HTML<\/strong><\/span><\/i><\/a><\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Trong x\u00e2y d\u1ef1ng giao di\u1ec7n web, template HTML cho ph\u00e9p b\u1ea1n l\u01b0u tr\u1eef c\u00e1c \u0111o\u1ea1n m\u00e3 HTML \u201c\u1ea9n\u201d, kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb ngay khi t\u1ea3i trang, ch\u1ec9 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t b\u1eb1ng JavaScript. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng, \u1ee9ng d\u1ee5ng v\u00e0 nh\u1eefng l\u1ee3i \u00edch m\u00e0 th\u1ebb &lt;template&gt; mang l\u1ea1i cho [&hellip;]<\/p>\n","protected":false},"author":207,"featured_media":86507,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[109],"tags":[],"class_list":["post-86498","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chuyen-mon-it"],"blocksy_meta":[],"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>Th\u1ebb Template HTML: Chi ti\u1ebft c\u00e1ch s\u1eed d\u1ee5ng (k\u00e8m v\u00ed d\u1ee5 c\u1ee5 th\u1ec3) - ITviec Blog<\/title>\n<meta name=\"description\" content=\"Th\u1ebb Template HTML d\u00f9ng \u0111\u1ec3 khai b\u00e1o n\u1ed9i dung \u1ea9n, ch\u1edd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng JavaScript. 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