esbuild打包速度非常快(esbuild比Webpack快100倍)，目前我所在公司项目也开始将之前我写的webpack-demo方案逐渐替换到esbuild splitting多页面打包。

初始化项目

mkdir esbuild-splitting
cd esbuild-splitting
yarn --init

安装依赖

yarn global add serve
yarn add del gulp gulp-changed gulp-esbuild jquery

项目文件

项目目录结构如下：

├─dist
│  └─js
└─src
    ├─html
    └─js

src/html文件夹中分别放入a.html、b.html，html.zip解压方进入吧。

src/js/core.js

import $ from "jquery";
$("#core").html("Core module");

src/js/a.js

import $ from "jquery";
import "./core";

$("#a").html("A file, file A");
$('body').css('color','red')

src/js/b.js

import $ from "jquery";
import "./core";

$("#b").html("B yourself");

gulpfile.js

const gulp = require('gulp')
const {createGulpEsbuild} = require('gulp-esbuild')
const gulpEsbuild = createGulpEsbuild({ incremental: true })
const changed = require('gulp-changed')
const del = require('del')

function clean() {
  // You can use multiple globbing patterns as you would with `gulp.src`,
  // for example if you are using del 2.0 or above, return its promise
  return del(['dist'])
}

function script() {
  return gulp.src('./src/js/*.js')
      .pipe(gulpEsbuild({
          bundle: true,
          splitting:true,
          format:'esm',
          minify: true
      }))
      .pipe(gulp.dest('./dist/js'))
}

function html() {
  return gulp.src('./src/html/**/*.html')
    .pipe(changed('./dist/*.html'))
    .pipe(gulp.dest('./dist'))
}

function watch() {
  gulp.watch('./src/js', script)
  gulp.watch('./src/html/**/*.html', html)
}

// const build = gulp.series(clean, gulp.parallel(script, watch))
const build = gulp.series(gulp.parallel(script,html, watch))
exports.clean = clean
exports.script = script
exports.html = html
exports.watch = watch
exports.build = build
exports.default = build

package.json

package.json中增加：

"scripts": {
    "watch": "gulp watch",
    "serve": "serve dist -p 3000"
}

编译和查看效果

编译：

gulp

查看效果：

serve