src/main.js
import { add } from "./math";
import count from "./js/count";
import sum from "./js/sum";
// 引入资源，Webpack才会对其打包
import "./css/iconfont.css";
import "./css/index.css";
import "./less/index.less";
import "./sass/index.sass";
import "./sass/index.scss";
import "./styl/index.styl";
console.log(count(2, 1));
console.log(sum(1, 2, 3, 4));public/index.html
<!DOCTYPE html>
<html lang="en">
? <head>
? ? <meta charset="UTF-8" />
? ? <meta http-equiv="X-UA-Compatible" content="IE=edge" />
? ? <meta name="viewport" content="width=device-width, initial-scale=1.0" />
? ? <title>webpack5</title>
? </head>
? <body>
? ? <h1>Hello Webpack5</h1>
? ? <div class="box1"></div>
? ? <div class="box2"></div>
? ? <div class="box3"></div>
? ? <div class="box4"></div>
? ? <div class="box5"></div>
? ? <!-- 使用字体图标 -->
? ? <i class="iconfont icon-arrow-down"></i>
? ? <i class="iconfont icon-ashbin"></i>
? ? <i class="iconfont icon-browse"></i>
? ? <script src="../dist/static/js/main.js"></script>
? </body>
</html>const path = require("path");
module.exports = {
entry: "./src/main.js",
output: {
path: path.resolve(__dirname, "dist"),
filename: "static/js/main.js", // 将 js 文件输出到 static/js 目录中
clean: true, // 自动将上次打包目录资源清空
},
module: {
rules: [
{
// 用来匹配 .css 结尾的文件
test: /\.css$/,
// use 数组里面 Loader 执行顺序是从右到左
use: ["style-loader", "css-loader"],
},
{
test: /\.less$/,
use: ["style-loader", "css-loader", "less-loader"],
},
{
test: /\.s[ac]ss$/,
use: ["style-loader", "css-loader", "sass-loader"],
},
{
test: /\.styl$/,
use: ["style-loader", "css-loader", "stylus-loader"],
},
{
test: /\.(png|jpe?g|gif|webp)$/,
type: "asset",
parser: {
dataUrlCondition: {
maxSize: 10 * 1024, // 小于10kb的图片会被base64处理
},
},
generator: {
// 将图片文件输出到 static/imgs 目录中
// 将图片文件命名 [hash:8][ext][query]
// [hash:8]: hash值取8位
// [ext]: 使用之前的文件扩展名
// [query]: 添加之前的query参数
filename: "static/imgs/[hash:8][ext][query]",
},
},
{
test: /\.(ttf|woff2?)$/,
type: "asset/resource",
generator: {
filename: "static/media/[hash:8][ext][query]",
},
},
],
},
plugins: [],
mode: "development",
};type: "asset/resource"和type: "asset"的区别：
type: "asset/resource" 相当于file-loader, 将文件转化成 Webpack 能识别的资源，其他不做处理
type: "asset" 相当于url-loader, 将文件转化成 Webpack 能识别的资源，同时小于某个大小的资源会处理成 data URI 形式
npx webpack打开 index.html 页面查看效果