{"id":5184,"date":"2025-10-04T19:37:50","date_gmt":"2025-10-04T12:37:50","guid":{"rendered":"https:\/\/kituaz.com\/blog\/react-la-gi\/"},"modified":"2025-10-04T19:39:43","modified_gmt":"2025-10-04T12:39:43","slug":"react-la-gi","status":"publish","type":"post","link":"https:\/\/kituaz.com\/blog\/react-la-gi\/","title":{"rendered":"React l\u00e0 g\u00ec: Gi\u1ea3i th\u00edch chi ti\u1ebft v\u1ec1 React v\u00e0 vai tr\u00f2 c\u1ee7a n\u00f3 trong ph\u00e1t tri\u1ec3n web"},"content":{"rendered":"<p>Ch\u00e0o c\u00e1c b\u1ea1n \u0111\u1ecdc KituAZ Blog! H\u00f4m nay ch\u00fang ta s\u1ebd c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1 React &#8211; m\u1ed9t c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n web \u0111ang ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u1ec1 React, c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3 v\u00e0 nh\u1eefng \u01b0u \u0111i\u1ec3m khi s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 n\u00e0y.<\/p>\n<figure id=\"attachment_5186\" aria-describedby=\"caption-attachment-5186\" style=\"width: 502px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5186 size-full\" src=\"https:\/\/kituaz.com\/blog\/wp-content\/uploads\/2023\/06\/bieu-tuong-react.jpg\" alt=\"Bi\u1ec3u t\u01b0\u1ee3ng React\" width=\"512\" height=\"512\" srcset=\"https:\/\/kituaz.com\/blog\/wp-content\/uploads\/2023\/06\/bieu-tuong-react.jpg 512w, https:\/\/kituaz.com\/blog\/wp-content\/uploads\/2023\/06\/bieu-tuong-react-300x300.jpg 300w, https:\/\/kituaz.com\/blog\/wp-content\/uploads\/2023\/06\/bieu-tuong-react-150x150.jpg 150w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption id=\"caption-attachment-5186\" class=\"wp-caption-text\">Bi\u1ec3u t\u01b0\u1ee3ng React<\/figcaption><\/figure>\n<h2>Gi\u1edbi thi\u1ec7u v\u1ec1 React<\/h2>\n<h3>1.1 React l\u00e0 g\u00ec?<\/h3>\n<p>React l\u00e0 m\u1ed9t th\u01b0 vi\u1ec7n JavaScript m\u00e3 ngu\u1ed3n m\u1edf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e2y d\u1ef1ng giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng trong c\u00e1c \u1ee9ng d\u1ee5ng web. React \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi Facebook v\u00e0 hi\u1ec7n nay \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i b\u1edfi nhi\u1ec1u c\u00f4ng ty c\u00f4ng ngh\u1ec7 h\u00e0ng \u0111\u1ea7u th\u1ebf gi\u1edb<\/p>\n<h3>1.2 React \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h3>\n<p>React \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e2y d\u1ef1ng giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng (UI) ph\u1ea3n \u1ee9ng nhanh v\u00e0 linh ho\u1ea1t trong c\u00e1c \u1ee9ng d\u1ee5ng web. V\u1edbi React, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c th\u00e0nh ph\u1ea7n (components) t\u00e1i s\u1eed d\u1ee5ng v\u00e0 qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i (state) c\u1ee7a \u1ee9ng d\u1ee5ng m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng. React c\u00f2n h\u1ed7 tr\u1ee3 vi\u1ec7c render giao di\u1ec7n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 th\u00f4ng qua Virtual DOM.<\/p>\n<h3>1.3 L\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n c\u1ee7a React<\/h3>\n<p>React \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Jordan Walke, m\u1ed9t nh\u00e0 ph\u00e1t tri\u1ec3n t\u1ea1i Facebook. Ban \u0111\u1ea7u, React \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng tr\u00ean Facebook. Sau \u0111\u00f3, n\u00f3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 d\u01b0\u1edbi d\u1ea1ng m\u00e3 ngu\u1ed3n m\u1edf v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 quan t\u00e2m l\u1edbn t\u1eeb c\u1ed9ng \u0111\u1ed3ng ph\u00e1t tri\u1ec3n web.<\/p>\n<figure id=\"attachment_5187\" aria-describedby=\"caption-attachment-5187\" style=\"width: 502px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5187 size-full\" src=\"https:\/\/kituaz.com\/blog\/wp-content\/uploads\/2023\/06\/minh-hoa-virtual-dom-react.jpg\" alt=\"Minh h\u1ecda kh\u00e1i ni\u1ec7m Virtual DOM trong React\" width=\"512\" height=\"512\" srcset=\"https:\/\/kituaz.com\/blog\/wp-content\/uploads\/2023\/06\/minh-hoa-virtual-dom-react.jpg 512w, https:\/\/kituaz.com\/blog\/wp-content\/uploads\/2023\/06\/minh-hoa-virtual-dom-react-300x300.jpg 300w, https:\/\/kituaz.com\/blog\/wp-content\/uploads\/2023\/06\/minh-hoa-virtual-dom-react-150x150.jpg 150w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption id=\"caption-attachment-5187\" class=\"wp-caption-text\">Minh h\u1ecda kh\u00e1i ni\u1ec7m Virtual DOM trong React<\/figcaption><\/figure>\n<h2>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a React<\/h2>\n<h3>2.1 Virtual DOM trong React<\/h3>\n<p>React s\u1eed d\u1ee5ng kh\u00e1i ni\u1ec7m Virtual DOM (DOM \u1ea3o) \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh c\u1eadp nh\u1eadt giao di\u1ec7n. Thay v\u00ec c\u1eadp nh\u1eadt to\u00e0n b\u1ed9 DOM khi c\u00f3 thay \u0111\u1ed5i, React s\u1ebd t\u1ea1o ra m\u1ed9t b\u1ea3n sao c\u1ee7a DOM hi\u1ec7n t\u1ea1i v\u00e0 so s\u00e1nh v\u1edbi DOM m\u1edbi sau khi c\u00f3 s\u1ef1 thay \u0111\u1ed5Sau \u0111\u00f3, React ch\u1ec9 c\u1eadp nh\u1eadt nh\u1eefng ph\u1ea7n thay \u0111\u1ed5i th\u1ef1c s\u1ef1 tr\u00ean DOM th\u1eadt, gi\u00fap t\u0103ng hi\u1ec7u su\u1ea5t v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ee7a \u1ee9ng d\u1ee5ng.<\/p>\n<h3>2.2 C\u00e1ch React x\u1eed l\u00fd s\u1ef1 ki\u1ec7n v\u00e0 c\u1eadp nh\u1eadt giao di\u1ec7n<\/h3>\n<p>React s\u1eed d\u1ee5ng m\u00f4 h\u00ecnh &#8220;one-way data flow&#8221; \u0111\u1ec3 qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i v\u00e0 c\u1eadp nh\u1eadt giao di\u1ec7n. Khi c\u00f3 s\u1ef1 ki\u1ec7n x\u1ea3y ra, React s\u1ebd c\u1eadp nh\u1eadt tr\u1ea1ng th\u00e1i c\u1ee7a \u1ee9ng d\u1ee5ng v\u00e0 render l\u1ea1i giao di\u1ec7n d\u1ef1a tr\u00ean tr\u1ea1ng th\u00e1i m\u1edbi n\u00e0y. Qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra m\u1ed9t c\u00e1ch t\u1ef1 \u0111\u1ed9ng v\u00e0 hi\u1ec7u qu\u1ea3, gi\u00fap \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a giao di\u1ec7n.<\/p>\n<h3>2.3 Component trong React<\/h3>\n<p>Component l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng trong React. M\u1ed7i th\u00e0nh ph\u1ea7n trong giao di\u1ec7n c\u1ee7a \u1ee9ng d\u1ee5ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t component ri\u00eang bi\u1ec7t. C\u00e1c component c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e1i s\u1eed d\u1ee5ng v\u00e0 k\u1ebft h\u1ee3p v\u1edbi nhau \u0111\u1ec3 t\u1ea1o th\u00e0nh giao di\u1ec7n ho\u00e0n ch\u1ec9nh. Vi\u1ec7c s\u1eed d\u1ee5ng component gi\u00fap m\u00e3 ngu\u1ed3n d\u1ec5 \u0111\u1ecdc, b\u1ea3o tr\u00ec v\u00e0 ph\u00e1t tri\u1ec3n.<\/p>\n<h2>FAQ v\u1ec1 React<\/h2>\n<h3>3.1 React l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh hay framework?<\/h3>\n<p>React kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh m\u00e0 th\u1ef1c ch\u1ea5t l\u00e0 m\u1ed9t th\u01b0 vi\u1ec7n JavaScript. N\u00f3 gi\u00fap x\u00e2y d\u1ef1ng giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng trong c\u00e1c \u1ee9ng d\u1ee5ng web m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n<h3>3.2 React c\u00f3 ph\u1ea3i l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh m\u1edbi?<\/h3>\n<p>Kh\u00f4ng, React kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh m\u1edbN\u00f3 ch\u1ec9 l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 hi\u1ec7u su\u1ea5t v\u00e0 qu\u1ea3n l\u00fd giao di\u1ec7n trong \u1ee9ng d\u1ee5ng web.<\/p>\n<h3>3.3 React c\u00f3 kh\u00f3 h\u1ecdc kh\u00f4ng?<\/h3>\n<p>React kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 kh\u00f3 h\u1ecdc. V\u1edbi ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 JavaScript v\u00e0 HTML\/CSS, b\u1ea1n c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u h\u1ecdc React m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng. C\u1ed9ng \u0111\u1ed3ng React c\u0169ng r\u1ea5t \u0111\u00f4ng \u0111\u1ea3o v\u00e0 h\u1ed7 tr\u1ee3, b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y r\u1ea5t nhi\u1ec1u t\u00e0i li\u1ec7u v\u00e0 ngu\u1ed3n h\u1ecdc tr\u1ef1c tuy\u1ebfn \u0111\u1ec3 n\u1eafm v\u1eefng React.<\/p>\n<h3>3.4 React c\u00f3 \u01b0u \u0111i\u1ec3m g\u00ec so v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 kh\u00e1c?<\/h3>\n<p>React c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m h\u01a1n so v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 kh\u00e1c, bao g\u1ed3m:<\/p>\n<ul>\n<li>Hi\u1ec7u su\u1ea5t cao nh\u1edd s\u1eed d\u1ee5ng Virtual DOM.<\/li>\n<li>D\u1ec5 d\u00e0ng qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i v\u00e0 c\u1eadp nh\u1eadt giao di\u1ec7n v\u1edbi m\u00f4 h\u00ecnh &#8220;one-way data flow&#8221;.<\/li>\n<li>T\u00e1i s\u1eed d\u1ee5ng th\u00e0nh ph\u1ea7n gi\u00fap m\u00e3 ngu\u1ed3n d\u1ec5 \u0111\u1ecdc v\u00e0 b\u1ea3o tr\u00ec.<\/li>\n<li>H\u1ed7 tr\u1ee3 c\u1ed9ng \u0111\u1ed3ng l\u1edbn v\u00e0 nhi\u1ec1u t\u00e0i li\u1ec7u h\u1ecdc.<\/li>\n<\/ul>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>React l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n web m\u1ea1nh m\u1ebd v\u00e0 linh ho\u1ea1t. V\u1edbi c\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n nh\u01b0 Virtual DOM, qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i v\u00e0 s\u1eed d\u1ee5ng component, React gi\u00fap b\u1ea1n x\u00e2y d\u1ef1ng giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng ph\u1ea3n \u1ee9ng nhanh v\u00e0 d\u1ec5 d\u00e0ng qu\u1ea3n l\u00fd. C\u00f4ng ngh\u1ec7 n\u00e0y kh\u00f4ng ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong l\u0129nh v\u1ef1c ph\u00e1t tri\u1ec3n web m\u00e0 c\u00f2n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao b\u1edfi c\u1ed9ng \u0111\u1ed3ng l\u1eadp tr\u00ecnh vi\u00ean.<\/p>\n<p>N\u1ebfu b\u1ea1n quan t\u00e2m \u0111\u1ebfn c\u00e1c c\u00f4ng ngh\u1ec7 web kh\u00e1c nh\u01b0 Server, Storybook hay Stream, h\u00e3y truy c\u1eadp v\u00e0o c\u00e1c b\u00e0i vi\u1ebft t\u1ea1i <a href=\"https:\/\/kituaz.com\/blog\/chia-se\/\">KituAZ Blog<\/a>. Ch\u00fang t\u00f4i cam k\u1ebft cung c\u1ea5p ki\u1ebfn th\u1ee9c ch\u1ea5t l\u01b0\u1ee3ng, gi\u1ea3i th\u00edch m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n v\u00e0 chi ti\u1ebft nh\u1ea5t \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 n\u1eafm b\u1eaft th\u00f4ng tin m\u1ed9t c\u00e1ch nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c nh\u1ea5t.<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-right kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;right&quot;,&quot;id&quot;:&quot;5184&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;4&quot;,&quot;greet&quot;:&quot;&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 b\u00ecnh ch\u1ecdn)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;React l\u00e0 g\u00ec: Gi\u1ea3i th\u00edch chi ti\u1ebft v\u1ec1 React v\u00e0 vai tr\u00f2 c\u1ee7a n\u00f3 trong ph\u00e1t tri\u1ec3n web&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\"><\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u React l\u00e0 g\u00ec v\u00e0 vai tr\u00f2 c\u1ee7a n\u00f3 trong ph\u00e1t tri\u1ec3n web. Gi\u1ea3i \u0111\u00e1p c\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 React. 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