{"id":1301,"date":"2021-11-12T07:07:10","date_gmt":"2021-11-12T07:07:10","guid":{"rendered":"https:\/\/topviecit.vn\/blog\/?p=1301"},"modified":"2022-12-29T02:26:26","modified_gmt":"2022-12-29T02:26:26","slug":"javascript-la-gi","status":"publish","type":"post","link":"https:\/\/topviecit.vn\/blog\/javascript-la-gi\/","title":{"rendered":"Javascript l\u00e0 g\u00ec? Gi\u1edbi thi\u1ec7u v\u1ec1 Javascript cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u"},"content":{"rendered":"\n<p>Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, Javascript l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh th\u00f4ng d\u1ee5ng trong ng\u00e0nh CNTT. Nhi\u1ec1u framework \u0111\u01b0\u1ee3c ra \u0111\u1eddi b\u1eb1ng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh Javascript. C\u00f9ng <strong><a href=\"https:\/\/topviecit.vn\/\" target=\"_blank\" rel=\"noreferrer noopener\">topviecit.vn<\/a><\/strong> t\u00ecm hi\u1ec3u chi ti\u1ebft xem <strong><a href=\"https:\/\/topviecit.vn\/blog\/javascript-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Javascript l\u00e0 g\u00ec<\/a><\/strong> v\u00e0 nh\u1eefng th\u00f4ng tin c\u1ea7n bi\u1ebft v\u1ec1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh javascript d\u00e0nh cho ng\u01b0\u1eddi m\u1edbi nh\u00e9.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_63 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 \" >Table of Contents<\/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:\/\/topviecit.vn\/blog\/javascript-la-gi\/#Javascript_la_gi\" title=\"Javascript l\u00e0 g\u00ec?\">Javascript 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:\/\/topviecit.vn\/blog\/javascript-la-gi\/#Uu_diem_cua_JavaScript_la_gi\" title=\"\u01afu \u0111i\u1ec3m c\u1ee7a JavaScript l\u00e0 g\u00ec?\">\u01afu \u0111i\u1ec3m c\u1ee7a JavaScript 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-3\" href=\"https:\/\/topviecit.vn\/blog\/javascript-la-gi\/#JavaScript_co_khuyet_diem_gi_khong\" title=\"JavaScript c\u00f3 khuy\u1ebft \u0111i\u1ec3m g\u00ec kh\u00f4ng?\">JavaScript c\u00f3 khuy\u1ebft \u0111i\u1ec3m g\u00ec kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topviecit.vn\/blog\/javascript-la-gi\/#JavaScript_hoat_dong_nhu_the_nao_tren_trang_web\" title=\"JavaScript ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o tr\u00ean trang web?\">JavaScript ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o tr\u00ean trang web?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/topviecit.vn\/blog\/javascript-la-gi\/#So_sanh_JavaScript_va_mot_so_ngon_ngu_lap_trinh_khac\" title=\"So s\u00e1nh JavaScript v\u00e0 m\u1ed9t s\u1ed1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c\">So s\u00e1nh JavaScript v\u00e0 m\u1ed9t s\u1ed1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/topviecit.vn\/blog\/javascript-la-gi\/#Loi_ket\" title=\"L\u1eddi k\u1ebft\">L\u1eddi k\u1ebft<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Javascript_la_gi\"><\/span><strong>Javascript l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>JavaScript (JS) l\u00e0 m\u1ed9t d\u1ea1ng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh mang \u0111\u1ebfn s\u1ef1 sinh \u0111\u1ed9ng c\u1ee7a website. Ng\u00f4n ng\u1eef n\u00e0y kh\u00e1c v\u1edbi HTML (th\u01b0\u1eddng chuy\u00ean cho n\u1ed9i dung) v\u00e0 CSS (th\u01b0\u1eddng chuy\u00ean d\u00f9ng cho phong c\u00e1ch), v\u00e0 Javascript c\u0169ng kh\u00e1c h\u1eb3n v\u1edbi PHP v\u00ec n\u00f3 ch\u1ea1y tr\u00ean server ch\u1ee9 kh\u00f4ng ch\u1ea1y d\u01b0\u1edbi m\u00e1y client.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-24.jpeg\" alt=\"Javascript l\u00e0 g\u00ec 01\" class=\"wp-image-1302\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-24.jpeg 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-24-599x400.jpeg 599w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-24-768x513.jpeg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"> <em>JavaScript l\u00e0 m\u1ed9t d\u1ea1ng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh mang \u0111\u1ebfn s\u1ef1 sinh \u0111\u1ed9ng c\u1ee7a website<\/em> <\/figcaption><\/figure><\/div>\n\n\n<p>V\u1edbi th\u1eafc m\u1eafc Javascript l\u00e0 g\u00ec, ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01a1n gi\u1ea3n nh\u01b0 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>JavaScript l\u00e0 m\u1ed9t lo\u1ea1i ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh d\u1ec5 h\u1ecdc v\u00e0 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Netscape. Ng\u00f4n ng\u1eef n\u00e0y \u0111ang \u0111\u01b0\u1ee3c d\u00f9ng tr\u00ean 92% website;<\/li>\n\n\n\n<li>Ng\u00f4n ng\u1eef JS c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o m\u1ed9t element c\u1ee7a trang web ho\u1eb7c s\u1ef1 ki\u1ec7n c\u1ee7a trang web nh\u01b0 c\u00fa click chu\u1ed9t;<\/li>\n\n\n\n<li>L\u1eadp tr\u00ecnh web b\u1eb1ng Javascript th\u00ec website c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean \u0111a tr\u00ecnh duy\u1ec7t v\u00e0 \u0111a thi\u1ebft b\u1ecb;<\/li>\n\n\n\n<li>L\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 th\u00eam JavaScript tr\u1ef1c ti\u1ebfp v\u00e0o HTML ho\u1eb7c l\u01b0u JS tr\u00ean files ri\u00eang bi\u1ec7t v\u00e0 g\u1ecdi l\u00ean khi c\u1ea7n.<\/li>\n<\/ul>\n\n\n\n<p>Trong su\u1ed1t 20 n\u0103m qua, JavaScript l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi. Ng\u00f4n ng\u1eef JavaScript mang \u0111\u1ebfn s\u1ef1 c\u1ea3i thi\u1ec7n c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a trang web v\u00e0 c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng trong vi\u1ec7c ch\u1ea1y game v\u00e0 t\u1ea1o ph\u1ea7n m\u1ec1m n\u1ec1n web.<\/p>\n\n\n\n<p><strong>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/javascript-framework-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">5 Javascript Framework Th\u00f4ng D\u1ee5ng Nh\u1ea5t N\u0103m 2023<\/a><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Uu_diem_cua_JavaScript_la_gi\"><\/span><strong>\u01afu \u0111i\u1ec3m c\u1ee7a JavaScript l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>JavaScript d\u1ea7n tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn b\u1edfi v\u00ec n\u00f3 c\u00f3 r\u1ea5t nhi\u1ec1u \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c. C\u00f9ng t\u00ecm hi\u1ec3u nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh n\u00e0y nh\u00e9!<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u1eadp tr\u00ecnh vi\u00ean kh\u00f4ng c\u1ea7n m\u1ed9t compiler v\u00ec trong web browser c\u00f3 th\u1ec3 bi\u00ean d\u1ecbch n\u00f3 b\u1eb1ng HTML;<\/li>\n\n\n\n<li>Ng\u00f4n ng\u1eef n\u00e0y d\u1ec5 h\u1ecdc h\u01a1n c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c;<\/li>\n\n\n\n<li>L\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng ph\u00e1t hi\u1ec7n l\u1ed7i h\u01a1n v\u00e0 d\u1ec5 ch\u1ec9nh s\u1eeda h\u01a1n.<\/li>\n\n\n\n<li>Ng\u00f4n ng\u1eef n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u1eafn tr\u00ean m\u1ed9t s\u1ed1 element c\u1ee7a trang web ho\u1eb7c event c\u1ee7a trang m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n;<\/li>\n\n\n\n<li>JS ho\u1ea1t \u0111\u1ed9ng tr\u00ean nhi\u1ec1u tr\u00ecnh duy\u1ec7t, n\u1ec1n t\u1ea3ng kh\u00e1c nhau, mang t\u00ednh \u1ee9ng d\u1ee5ng cao.<\/li>\n\n\n\n<li>Ch\u00fang ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng JavaScript \u0111\u1ec3 ki\u1ec3m tra input nh\u1eb1m gi\u1ea3m thi\u1ec3u vi\u1ec7c ki\u1ec3m tra th\u1ee7 c\u00f4ng khi truy xu\u1ea5t d\u1eef li\u1ec7u qua database;<\/li>\n\n\n\n<li>JS gi\u00fap website t\u01b0\u01a1ng t\u00e1c t\u1ed1t h\u01a1n v\u1edbi kh\u00e1ch truy c\u1eadp;<\/li>\n\n\n\n<li>Ng\u00f4n ng\u1eef n\u00e0y nhanh v\u00e0 dung l\u01b0\u1ee3ng nh\u1eb9 h\u01a1n c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c.<\/li>\n<\/ul>\n\n\n\n<p><strong>T\u00ecm hi\u1ec3u th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/ngon-ngu-may-tinh-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Ng\u00f4n Ng\u1eef M\u00e1y T\u00ednh L\u00e0 G\u00ec? \u1ee8ng D\u1ee5ng Nh\u01b0 Th\u1ebf N\u00e0o?<\/a><\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"560\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-25.jpeg\" alt=\"Javascript l\u00e0 g\u00ec\" class=\"wp-image-1303\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-25.jpeg 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-25-571x400.jpeg 571w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-25-768x538.jpeg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"> <em>L\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng ph\u00e1t hi\u1ec7n l\u1ed7i h\u01a1n v\u00e0 d\u1ec5 ch\u1ec9nh s\u1eeda h\u01a1n tr\u00ean JS.<\/em> <\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"JavaScript_co_khuyet_diem_gi_khong\"><\/span><strong>JavaScript c\u00f3 khuy\u1ebft \u0111i\u1ec3m g\u00ec kh\u00f4ng?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>M\u1ecdi ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh \u0111\u1ec1u c\u00f3 c\u00e1c khuy\u1ebft \u0111i\u1ec3m ri\u00eang. JS c\u0169ng v\u1eady, b\u00ean c\u1ea1nh nh\u1eefng \u01b0u \u0111i\u1ec3m ng\u00f4n ng\u1eef n\u00e0y c\u0169ng c\u00f3 nh\u1eefng khuy\u1ebft \u0111i\u1ec3m c\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Javascript kh\u00e1 d\u1ec5 b\u1ecb khai th\u00e1c v\u00e0 hack<\/li>\n\n\n\n<li>Ng\u00f4n ng\u1eef n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 th\u1ef1c thi nh\u1eefng m\u00e3 \u0111\u1ed9c tr\u00ean m\u00e1y t\u00ednh c\u1ee7a ng\u01b0\u1eddi d\u00f9ng;<\/li>\n\n\n\n<li>C\u0169ng c\u00f3 m\u1ed9t s\u1ed1 tr\u00ecnh duy\u1ec7t kh\u00f4ng h\u1ed7 tr\u1ee3 ng\u00f4n ng\u1eef JS.<\/li>\n\n\n\n<li>JS code snippets cao;<\/li>\n\n\n\n<li>Ng\u00f4n ng\u1eef n\u00e0y c\u00f3 th\u1ec3 b\u1ecb tri\u1ec3n khai kh\u00e1c nhau t\u00f9y t\u1eebng thi\u1ebft b\u1ecb n\u00ean c\u00f3 th\u1ec3 x\u1ea3y ra t\u00ecnh tr\u1ea1ng kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"JavaScript_hoat_dong_nhu_the_nao_tren_trang_web\"><\/span><strong>JavaScript ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o tr\u00ean trang web?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>H\u1ecdat \u0111\u1ed9ng tr\u00ean web c\u1ee7a JavaScript l\u00e0 g\u00ec? JavaScript th\u01b0\u1eddng \u0111\u01b0\u1ee3c nh\u00fang tr\u1ef1c ti\u1ebfp v\u00e0o m\u1ed9t trang web ho\u1eb7c \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh vi\u00ean tham chi\u1ebfu qua file .js ri\u00eang. \u0110\u00e2y l\u00e0 ng\u00f4n ng\u1eef t\u1eeb ph\u00eda client, t\u1ee9c l\u00e0 Script \u0111\u01b0\u1ee3c t\u1ea3i v\u1ec1 m\u00e1y c\u1ee7a kh\u00e1ch truy c\u1eadp v\u00e0 s\u1ebd \u0111\u01b0\u1ee3c x\u1eed l\u00fd t\u1ea1i \u0111\u00f3 thay cho ph\u00eda server l\u00e0 x\u1eed l\u00fd tr\u00ean server r\u1ed3i m\u1edbi \u0111\u01b0a k\u1ebft qu\u1ea3 t\u1edbi cho kh\u00e1ch truy c\u1eadp.<\/p>\n\n\n\n<p>H\u00e3y l\u01b0u \u00fd l\u00e0 c\u00e1c tr\u00ecnh duy\u1ec7t web ph\u1ed5 bi\u1ebfn c\u0169ng c\u00f3 nh\u1eefng h\u1ed7 tr\u1ee3 vi\u1ec7c ng\u01b0\u1eddi d\u00f9ng c\u00f3 mu\u1ed1n t\u1eaft JavaScript hay kh\u00f4ng. Do \u0111\u00f3, ch\u00fang ta c\u1ea7n ph\u1ea3i bi\u1ebft n\u00f3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean web nh\u01b0 th\u1ebf n\u00e0o. L\u1eadp tr\u00ecnh web b\u1eb1ng Javascript ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y.<\/p>\n\n\n\n<p><strong>T\u00ecm hi\u1ec3u th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/ky-su-it-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">K\u1ef9 S\u01b0 IT L\u00e0 G\u00ec<\/mark><\/a>? L\u01b0\u01a1ng K\u1ef9 S\u01b0 IT \u1ede Vi\u1ec7t Nam Cao Kh\u00f4ng?<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"So_sanh_JavaScript_va_mot_so_ngon_ngu_lap_trinh_khac\"><\/span><strong>So s\u00e1nh JavaScript v\u00e0 m\u1ed9t s\u1ed1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>JavaScript \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn \u200b\u200bch\u00ednh b\u1edfi t\u00ednh linh ho\u1ea1t c\u1ee7a n\u00f3. C\u00f3 r\u1ea5t nhi\u1ec1u l\u1eadp th\u00e0nh vi\u00ean s\u1eed d\u1ee5ng ng\u00f4n ng\u1eef n\u00e0y l\u00e0 ng\u00f4n ng\u1eef ch\u00ednh v\u00e0 ch\u1ec9 s\u1eed d\u1ee5ng nh\u1eefng ng\u00f4n ng\u1eef kh\u00e1c trong khi h\u1ecd c\u1ea7n d\u00f9ng t\u00ednh n\u0103ng g\u00ec \u0111\u00f3 \u0111\u1eb7c bi\u1ec7t. C\u00f9ng so s\u00e1nh v\u1edbi nh\u1eefng ng\u00f4n ng\u1eef kh\u00e1c \u0111\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c <strong><a href=\"https:\/\/topviecit.vn\/blog\/ngon-ngu-lap-trinh-cap-thap\/\" target=\"_blank\" rel=\"noreferrer noopener\">ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh<\/a><\/strong> kh\u00e1c v\u1edbi Javascript l\u00e0 g\u00ec nh\u00e9!.\u00a0\u00a0\u00a0\u00a0<\/p>\n\n\n\n<p><strong>JavaScript:<\/strong> JavaScript l\u00e0 ng\u00f4n ng\u1eef c\u00f3 hi\u1ec7u qu\u1ea3 t\u0103ng t\u00ednh t\u01b0\u01a1ng t\u00e1c tr\u00ean website. Script ch\u1ea1y tr\u00ean c\u00e1c tr\u00ecnh duy\u1ec7t c\u1ee7a ng\u01b0\u1eddi d\u00f9ng thay v\u00ec tr\u00ean server v\u00e0 th\u01b0\u1eddng s\u1eed d\u1ee5ng th\u01b0 vi\u1ec7n c\u1ee7a b\u00ean th\u1ee9 3 n\u00ean khi s\u1eed d\u1ee5ng ng\u00f4n ng\u1eef n\u00e0y th\u00ec c\u00f3 th\u1ec3 t\u0103ng th\u00eam ch\u1ee9c n\u0103ng cho website m\u00e0 l\u1eadp tr\u00ecnh vi\u00ean kh\u00f4ng ph\u1ea3i code t\u1eeb \u0111\u1ea7u.<\/p>\n\n\n\n<p><strong>HTML<\/strong>: Ng\u00f4n ng\u1eef n\u00e0y l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a thu\u1eadt ng\u1eef \u201cHypertext Markup Language\u201d. \u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t trong s\u1ed1 c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh ph\u1ed5 bi\u1ebfn nh\u1ea5t tr\u00ean web v\u00e0 x\u00e2y d\u1ef1ng n\u00ean c\u00e1c kh\u1ed1i ch\u00ednh c\u1ee7a m\u1ed9t trang web. C\u00f3 th\u1ec3 l\u1ea5y v\u00ed d\u1ee5 v\u1ec1 HTML tags l\u00e0 &lt;p&gt; cho \u0111o\u1ea1n v\u0103n v\u00e0 &lt;img&gt; cho h\u00ecnh \u1ea3nh.<\/p>\n\n\n\n<p><strong>PHP<\/strong>: PHP l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh t\u1eeb ph\u00eda server. Kh\u00f4ng gi\u1ed1ng nh\u01b0 v\u1edbi JavaScript ch\u1ea1y tr\u00ean m\u00e1y client. Ng\u00f4n ng\u1eef n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 qu\u1ea3n tr\u1ecb v\u1edbi&nbsp; n\u1ed9i dung n\u1ec1n PHP nh\u01b0 WordPress. B\u00ean c\u1ea1nh \u0111\u00f3, n\u00f3 c\u0169ng \u0111\u01b0\u1ee3c d\u00f9ng v\u1edbi l\u1eadp tr\u00ecnh back-end v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra k\u00eanh truy\u1ec1n th\u00f4ng tin r\u1ea5t hi\u1ec7u qu\u1ea3 t\u1eeb database.<\/p>\n\n\n\n<p><strong>CSS:<\/strong> CSS l\u00e0 t\u1eeb vi\u1ebft t\u1eaft c\u1ee7a thu\u1eadt ng\u1eef \u201cCascading Style Sheets\u201d. Ng\u00f4n ng\u1eef n\u00e0y gi\u00fap webmaster c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh styles v\u00e0 \u0111\u1ecbnh ngh\u0129a nhi\u1ec1u lo\u1ea1i n\u1ed9i dung kh\u00e1c nhau.<\/p>\n\n\n\n<p><strong>T\u00ecm hi\u1ec3u th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/html-co-phai-ngon-ngu-lap-trinh-khong\/\" target=\"_blank\" rel=\"noreferrer noopener\">Html L\u00e0 G\u00ec? Html C\u00f3 Ph\u1ea3i L\u00e0 Ng\u00f4n Ng\u1eef L\u1eadp Tr\u00ecnh Kh\u00f4ng?<\/a><\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"458\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-26.jpeg\" alt=\"Javascript l\u00e0 g\u00ec 03\" class=\"wp-image-1304\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-26.jpeg 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-26-699x400.jpeg 699w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/11\/image-26-768x440.jpeg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"> <em>JavaScript \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn \u200b\u200bch\u00ednh b\u1edfi t\u00ednh linh ho\u1ea1t c\u1ee7a n\u00f3<\/em> <\/figcaption><\/figure><\/div>\n\n\n<p>C\u00f3 th\u1ec3 th\u1ea5y m\u1ed7i ng\u00f4n ng\u1eef c\u00f3 m\u1ed9t ch\u1ee9c n\u0103ng v\u00e0 \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt ri\u00eang. N\u1ebfu ch\u00fang ta v\u00ed ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh nh\u01b0 l\u00e0 vi\u1ec7c x\u00e2y ng\u00f4i nh\u00e0 th\u00ec HTML s\u1ebd c\u00f3 vai tr\u00f2 \u0111\u1ecbnh d\u1ea1ng ki\u1ebfn tr\u00fac c\u1ee7a c\u0103n nh\u00e0. Trong khi \u0111\u00f3, CSS s\u1ebd l\u00e0 th\u1ea3m v\u00e0 t\u01b0\u1eddng \u0111\u1ec3 trang tr\u00ed ng\u00f4i nh\u00e0 tr\u1edf n\u00ean l\u1ed9ng l\u1eaby h\u01a1n.<\/p>\n\n\n\n<p>JavaScript c\u00f3 vai tr\u00f2 th\u00eam nh\u1eefng y\u1ebfu t\u1ed1 ti\u1ec7n \u00edch trong ng\u00f4i nh\u00e0. M\u1eb7c d\u00f9 ch\u00fang ta c\u00f3 th\u1ec3 l\u00e0m web m\u00e0 kh\u00f4ng c\u1ea7n c\u00f3 ng\u00f4n ng\u1eef JavaScript nh\u01b0ng ch\u1eafc ch\u1eafn m\u1ed9t \u0111i\u1ec1u l\u00e0 website sau khi ho\u00e0n th\u00e0nh s\u1ebd tr\u00f4ng r\u1ea5t s\u01a1 s\u00e0i v\u00e0 k\u00e9m thu h\u00fat.<\/p>\n\n\n\n<p><strong>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/developer-la-gi-2\/\" target=\"_blank\" rel=\"noreferrer noopener\">Developer L\u00e0 Ngh\u1ec1 G\u00ec? M\u00f4 T\u1ea3 C\u00f4ng Vi\u1ec7c V\u00e0 M\u1ee9c Thu Nh\u1eadp C\u1ee7a Developer<\/a><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Loi_ket\"><\/span><strong>L\u1eddi k\u1ebft<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Nh\u1eefng th\u00f4ng tin tr\u00ean \u0111\u00e3 gi\u00fap b\u1ea1n hi\u1ec3u \u0111\u01b0\u1ee3c <strong>Javascript l\u00e0 g\u00ec<\/strong> v\u00e0 nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a Javascript trong l\u1eadp tr\u00ecnh web. C\u00f3 th\u1ec3 th\u1ea5y vai tr\u00f2 v\u00e0 s\u1ee9c m\u1ea1nh c\u1ee7a ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh javascript \u0111ang ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n. Ngo\u00e0i ra, n\u1ebfu b\u1ea1n c\u00f3 nhu c\u1ea7u\u00a0t\u00ecm\u00a0<strong><a href=\"https:\/\/www.topcv.vn\/viec-lam\" target=\"_blank\" rel=\"noreferrer noopener\">vi\u1ec7c l\u00e0m<\/a><\/strong>\u00a0ng\u00e0nh IT, h\u00e3y truy c\u1eadp ngay v\u00e0o\u00a0<a href=\"https:\/\/www.topcv.vn\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>TopCV<\/strong><\/a>. B\u1ea1n s\u1ebd ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c v\u1edbi nhi\u1ec1u tin tuy\u1ec3n d\u1ee5ng v\u1edbi m\u1ee9c thu nh\u1eadp h\u1ea5p d\u1eabn.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, Javascript l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh th\u00f4ng d\u1ee5ng trong ng\u00e0nh CNTT. Nhi\u1ec1u framework \u0111\u01b0\u1ee3c ra \u0111\u1eddi b\u1eb1ng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh Javascript. C\u00f9ng topviecit.vn t\u00ecm hi\u1ec3u chi ti\u1ebft xem Javascript l\u00e0 g\u00ec v\u00e0 nh\u1eefng th\u00f4ng tin c\u1ea7n bi\u1ebft v\u1ec1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh javascript d\u00e0nh cho ng\u01b0\u1eddi m\u1edbi nh\u00e9. Javascript [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1305,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"cybocfi_hide_featured_image":"","footnotes":""},"categories":[86],"tags":[297,296,295,298],"class_list":["post-1301","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chia-se-kinh-nghiem","tag-hoc-lap-trinh-javascript","tag-lap-trinh-web-bang-javascript","tag-ngon-ngu-lap-trinh-javascript","tag-ung-dung-cua-javascript"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Javascript l\u00e0 g\u00ec? Gi\u1edbi thi\u1ec7u v\u1ec1 Javascript cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u<\/title>\n<meta name=\"description\" content=\"C\u00f9ng t\u00ecm hi\u1ec3u chi ti\u1ebft xem Javascript l\u00e0 g\u00ec v\u00e0 nh\u1eefng th\u00f4ng tin c\u1ea7n bi\u1ebft v\u1ec1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh javascript d\u00e0nh cho ng\u01b0\u1eddi m\u1edbi nh\u00e9.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/topviecit.vn\/blog\/javascript-la-gi\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Javascript l\u00e0 g\u00ec? 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