Bài hôm nay sẽ tiếp tục học cách load thêm thư viện và ví dụ ở đây là bootstrap phiên bản 4x.
1. Chuẩn bị file
Code file webpack.config.js
ban đầu:
1 2 3 4 5 6 7 8 9 10 | <span class="token keyword">const</span> path <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'path'</span><span class="token punctuation">)</span> module<span class="token punctuation">.</span>exports <span class="token operator">=</span> <span class="token punctuation">{</span> entry<span class="token operator">:</span> <span class="token string">'./src/index.js'</span><span class="token punctuation">,</span> output<span class="token operator">:</span> <span class="token punctuation">{</span> filename<span class="token operator">:</span> <span class="token string">'main.js'</span><span class="token punctuation">,</span> path<span class="token operator">:</span> path<span class="token punctuation">.</span><span class="token function">resolve</span><span class="token punctuation">(</span>__dirname<span class="token punctuation">,</span> <span class="token string">'dist'</span><span class="token punctuation">)</span> <span class="token punctuation">}</span> <span class="token punctuation">}</span> |
Code file dist/index.html
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | <span class="token doctype"><!DOCTYPE html></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span> <span class="token attr-name">lang</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>en<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">charset</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>UTF-8<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>Webpack từ A đến Á cùng kentrung<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>link</span> <span class="token attr-name">rel</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>stylesheet<span class="token punctuation">"</span></span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.5.0/css/bootstrap.min.css<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>style</span><span class="token punctuation">></span></span><span class="token style"><span class="token language-css"> <span class="token selector">.carousel-item</span> <span class="token punctuation">{</span><span class="token property">height</span><span class="token punctuation">:</span> 25rem<span class="token punctuation">;</span><span class="token punctuation">}</span> </span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>style</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>container<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>myCarousel<span class="token punctuation">"</span></span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel slide<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>ol</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-indicators<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>li</span> <span class="token attr-name">data-target</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#myCarousel<span class="token punctuation">"</span></span> <span class="token attr-name">data-slide-to</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>0<span class="token punctuation">"</span></span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>active<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>li</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>li</span> <span class="token attr-name">data-target</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#myCarousel<span class="token punctuation">"</span></span> <span class="token attr-name">data-slide-to</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>1<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>li</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>li</span> <span class="token attr-name">data-target</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#myCarousel<span class="token punctuation">"</span></span> <span class="token attr-name">data-slide-to</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>2<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>li</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>ol</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-inner<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-item active<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>svg</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>bd-placeholder-img<span class="token punctuation">"</span></span> <span class="token attr-name">width</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">height</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">xmlns</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.w3.org/2000/svg<span class="token punctuation">"</span></span> <span class="token attr-name">preserveAspectRatio</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>xMidYMid slice<span class="token punctuation">"</span></span> <span class="token attr-name">focusable</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>false<span class="token punctuation">"</span></span> <span class="token attr-name">role</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>img<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>rect</span> <span class="token attr-name">width</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">height</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">fill</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#777<span class="token punctuation">"</span></span> <span class="token punctuation">/></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>svg</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>container<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-caption text-left<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h1</span><span class="token punctuation">></span></span>Example headline.<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h1</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>btn btn-lg btn-primary<span class="token punctuation">"</span></span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#<span class="token punctuation">"</span></span> <span class="token attr-name">role</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>button<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>Sign up today<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-item<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>svg</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>bd-placeholder-img<span class="token punctuation">"</span></span> <span class="token attr-name">width</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">height</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">xmlns</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.w3.org/2000/svg<span class="token punctuation">"</span></span> <span class="token attr-name">preserveAspectRatio</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>xMidYMid slice<span class="token punctuation">"</span></span> <span class="token attr-name">focusable</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>false<span class="token punctuation">"</span></span> <span class="token attr-name">role</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>img<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>rect</span> <span class="token attr-name">width</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">height</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">fill</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#777<span class="token punctuation">"</span></span> <span class="token punctuation">/></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>svg</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>container<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-caption<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h1</span><span class="token punctuation">></span></span>Another example headline.<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h1</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>btn btn-lg btn-primary<span class="token punctuation">"</span></span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#<span class="token punctuation">"</span></span> <span class="token attr-name">role</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>button<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>Learn more<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-item<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>svg</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>bd-placeholder-img<span class="token punctuation">"</span></span> <span class="token attr-name">width</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">height</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">xmlns</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.w3.org/2000/svg<span class="token punctuation">"</span></span> <span class="token attr-name">preserveAspectRatio</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>xMidYMid slice<span class="token punctuation">"</span></span> <span class="token attr-name">focusable</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>false<span class="token punctuation">"</span></span> <span class="token attr-name">role</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>img<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>rect</span> <span class="token attr-name">width</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">height</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>100%<span class="token punctuation">"</span></span> <span class="token attr-name">fill</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#777<span class="token punctuation">"</span></span> <span class="token punctuation">/></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>svg</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>container<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-caption text-right<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h1</span><span class="token punctuation">></span></span>One more for good measure.<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h1</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>btn btn-lg btn-primary<span class="token punctuation">"</span></span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#<span class="token punctuation">"</span></span> <span class="token attr-name">role</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>button<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>Browse gallery<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-control-prev<span class="token punctuation">"</span></span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#myCarousel<span class="token punctuation">"</span></span> <span class="token attr-name">role</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>button<span class="token punctuation">"</span></span> <span class="token attr-name">data-slide</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>prev<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-control-prev-icon<span class="token punctuation">"</span></span> <span class="token attr-name">aria-hidden</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>true<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>sr-only<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>Previous<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-control-next<span class="token punctuation">"</span></span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#myCarousel<span class="token punctuation">"</span></span> <span class="token attr-name">role</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>button<span class="token punctuation">"</span></span> <span class="token attr-name">data-slide</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>next<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>carousel-control-next-icon<span class="token punctuation">"</span></span> <span class="token attr-name">aria-hidden</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>true<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>sr-only<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>Next<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span> <span class="token attr-name">src</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>main.js<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> |
Trang html này mình định tạo Carousel của bootstrap, vì mình chưa học cách load css vào trong webpack nên tạm thời mình load sẵn css vào trong html chỗ này.
1 2 3 4 5 | <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>link</span> <span class="token attr-name">rel</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>stylesheet<span class="token punctuation">"</span></span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.5.0/css/bootstrap.min.css<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>style</span><span class="token punctuation">></span></span><span class="token style"><span class="token language-css"> <span class="token selector">.carousel-item</span> <span class="token punctuation">{</span><span class="token property">height</span><span class="token punctuation">:</span> 25rem<span class="token punctuation">;</span><span class="token punctuation">}</span> </span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>style</span><span class="token punctuation">></span></span> |
Code file src/index.js
1 2 3 4 5 6 7 | <span class="token function">$</span><span class="token punctuation">(</span>document<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">ready</span><span class="token punctuation">(</span><span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span> <span class="token function">$</span><span class="token punctuation">(</span><span class="token string">'.carousel'</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">carousel</span><span class="token punctuation">(</span><span class="token punctuation">{</span> interval<span class="token operator">:</span> <span class="token number">1000</span><span class="token punctuation">,</span> ride<span class="token operator">:</span> <span class="token string">'carousel'</span> <span class="token punctuation">}</span><span class="token punctuation">)</span> <span class="token punctuation">}</span><span class="token punctuation">)</span> |
Đoạn code trên có tác dụng tự động chạy carousel và thời gian tự động chuyển slide tiếp theo là 1 giây. Mình set thời gian ngắn để test nhìn cho nhanh thôi. Chạy thử webpack ta có giao diện và log như sau:
1 2 | Uncaught ReferenceError: $ is not defined at (main.js:1) |
2. Load jQuery
Bài trước đã hướng dẫn cách load jQuery rồi nhưng thôi bài này hướng dẫn lại từ đầu cho dễ theo dõi. Trước tiên mình phải cài đặt jQuery qua npm
1 2 | npm install jquery |
Sau khi tải xong jQuery tiếp theo ta sửa lại webpack.config.js
để load jQuery thông qua provide plugin của webpack
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | <span class="token keyword">const</span> path <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'path'</span><span class="token punctuation">)</span> <span class="token keyword">const</span> webpack <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'webpack'</span><span class="token punctuation">)</span> module<span class="token punctuation">.</span>exports <span class="token operator">=</span> <span class="token punctuation">{</span> entry<span class="token operator">:</span> <span class="token string">'./src/index.js'</span><span class="token punctuation">,</span> output<span class="token operator">:</span> <span class="token punctuation">{</span> filename<span class="token operator">:</span> <span class="token string">'main.js'</span><span class="token punctuation">,</span> path<span class="token operator">:</span> path<span class="token punctuation">.</span><span class="token function">resolve</span><span class="token punctuation">(</span>__dirname<span class="token punctuation">,</span> <span class="token string">'dist'</span><span class="token punctuation">)</span> <span class="token punctuation">}</span><span class="token punctuation">,</span> plugins<span class="token operator">:</span> <span class="token punctuation">[</span> <span class="token keyword">new</span> <span class="token class-name">webpack<span class="token punctuation">.</span>ProvidePlugin</span><span class="token punctuation">(</span><span class="token punctuation">{</span> $<span class="token operator">:</span> <span class="token string">'jquery'</span><span class="token punctuation">,</span> jQuery<span class="token operator">:</span> <span class="token string">'jquery'</span> <span class="token punctuation">}</span><span class="token punctuation">)</span> <span class="token punctuation">]</span> <span class="token punctuation">}</span> |
Vậy là chúng ta đã giải quyết xong vấn đề load jQuery để hiểu được các kí tự $
trong code src/index.js
. Chạy thử webpack và chúng ta có log lỗi như sau:
1 2 | Uncaught TypeError: e(...).carousel is not a function at (main.js:1) |
Cái này là do chúng ta chưa load Boostrap Javascript, hàm carousel
là của boostrap chứ không phải của jQuery nên nó không hiểu là đúng rồi.
3. Load Bootstrap
Tải boostrap qua npm
1 2 | npm install bootstrap |
Khi cài đặt nó thì ở màn cmd
có cảnh báo mà chúng ta cần lưu ý
1 2 | npm WARN <a class="__cf_email__" href="/cdn-cgi/l/email-protection">[email protected]</a> requires a peer of <a class="__cf_email__" href="/cdn-cgi/l/email-protection">[email protected]</a>^1.16.0 but none is installed. You must install peer dependencies yourself. |
Ý nó muốn nói thằng bootstrap cần cài thêm popper.js bản từ 1.16.0 trở lên nhưng chưa được cài, bạn phải tự cài bằng tay (handjob), thế thì cài thêm cho đủ bộ.
1 2 | npm install popper.js |
Bước tiếp theo là chúng ta load Bootstrap Javascript vào trong file src/index.js
1 2 3 4 5 6 7 8 9 | <span class="token keyword">import</span> <span class="token string">'bootstrap'</span> <span class="token function">$</span><span class="token punctuation">(</span>document<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">ready</span><span class="token punctuation">(</span><span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span> <span class="token function">$</span><span class="token punctuation">(</span><span class="token string">'.carousel'</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">carousel</span><span class="token punctuation">(</span><span class="token punctuation">{</span> interval<span class="token operator">:</span> <span class="token number">1000</span><span class="token punctuation">,</span> ride<span class="token operator">:</span> <span class="token string">'carousel'</span> <span class="token punctuation">}</span><span class="token punctuation">)</span> <span class="token punctuation">}</span><span class="token punctuation">)</span> |
Câu lệnh import kia nó sẽ tự động tìm trong node-modules rồi đến bootstrap. Trong module này file package.json có khai báo
1 2 | "main": "dist/js/bootstrap.js" |
nên câu lệnh import ở trên chỉ là viết tắt của:
1 2 | <span class="token keyword">import</span> <span class="token string">'bootstrap/dist/js/bootstrap.js'</span> |
Chạy lại webpack npm run dev
và kết quả carousel đã chạy thành công. NGON!
Bài viết đến đây là hết, hi vọng với bài viết này các bạn đã thêm được nhiều kiến thức bổ ích. Hẹn gặp lại các bạn ở bài viết tiếp theo!
- Tham khảo cách cài boostrap cho webpack tại: https://getbootstrap.com/docs/4.5/getting-started/webpack/
- Sourcode github: https://github.com/kentrung/webpack-tutorial