timse

                          Asset       Size   Chunks             Chunk Names
      0.9110a255e8cbd547adc7.js  311 bytes        0  [emitted]
      ...

timse

// foo.js
import('./async-bar').then( a => console.log(a));
import('./async-baz').then( a => console.log(a));
// ...

timse

                          Asset       Size   Chunks             Chunk Names
      0.612f1fa751a3287cf615.js  311 bytes        0  [emitted]
      1.9606a5eadde08d70c763.js  311 bytes        1  [emitted]
      ...

timse

// webpack.config.js 
// ...
plugins: [ 
  // ... 
  new webpack.NamedChunksPlugin((chunk) => { 
    if (chunk.name) { 
      return chunk.name; 
    } 
    return chunk.modules.map(m => path.relative(m.context, m.request)).join("_"); 
  }), 

timse

                               Asset       Size        Chunks             Chunk Names
async-bar.js.06896d922ee7bb8af159.js  324 bytes  async-bar.js  [emitted]
async-baz.js.fff77d118cec24487e5d.js  324 bytes  async-baz.js  [emitted]
        main.16bb304a9926477df558.js    1.18 kB          main  [emitted]  main
     runtime.8f75ffddb5ac5820d4a9.js    6.01 kB       runtime  [emitted]  runtime
      vendor.73c86187abcdf9fd7b18.js    20.7 kB        vendor  [emitted]  vendor
[./node_modules/preact/dist/preact.js] ./~/preact/dist/preact.js 20.5 kB {vendor} [built]
[./src/async-bar.js] ./src/async-bar.js 41 bytes {async-bar.js} [built]
[./src/async-baz.js] ./src/async-baz.js 41 bytes {async-baz.js} [built]
[./src/bar.js] ./src/bar.js 23 bytes {main} [built]

timse

// webpack.config.js 
// ... 
externals: { 
  jquery: 'jQuery' 
}, 
// ...

timse

// before:

                               Asset       Size        Chunks             Chunk Names
async-bar.js.06896d922ee7bb8af159.js  324 bytes  async-bar.js  [emitted]
async-baz.js.fff77d118cec24487e5d.js  324 bytes  async-baz.js  [emitted]
        main.e4704e563c227ee88d16.js    1.21 kB          main  [emitted]  main
     runtime.6add1d75139c2dd504b1.js    6.01 kB       runtime  [emitted]  runtime
      vendor.73c86187abcdf9fd7b18.js    20.7 kB        vendor  [emitted]  vendor
[./node_modules/preact/dist/preact.js] ./~/preact/dist/preact.js 20.5 kB {vendor} [built]
[./src/async-bar.js] ./src/async-bar.js 41 bytes {async-bar.js} [built]

timse

// webpack.config.js 
plugins: [ 
  // ... 
  { 
    apply(compiler) { 
      compiler.plugin("compilation", (compilation) => { 
        compilation.plugin("before-module-ids", (modules) => { 
          modules.forEach((module) => { 
            if (module.id !== null) { 
              return; 

timse

                               Asset       Size        Chunks             Chunk
async-bar.js.06896d922ee7bb8af159.js  324 bytes  async-bar.js  [emitted]
async-baz.js.fff77d118cec24487e5d.js  324 bytes  async-baz.js  [emitted]
        main.8fad02c2ce285a92402a.js    1.52 kB          main  [emitted]  main
     runtime.a1ba8a5ef1cf9f245e87.js    6.01 kB       runtime  [emitted]  runtime
      vendor.12a52011916cc3cb208c.js    20.8 kB        vendor  [emitted]  vendor
[./node_modules/preact/dist/preact.js] ./~/preact/dist/preact.js 20.5 kB {vendor} [built]
[./src/async-bar.js] ./src/async-bar.js 41 bytes {async-bar.js} [built]
[./src/async-baz.js] ./src/async-baz.js 41 bytes {async-baz.js} [built]
[./src/bar.js] ./src/bar.js 23 bytes {main} [built]

timse

// webpack.config.js
// ...
entry: {
    main: './src/foo',
    other: './src/foo-two',
    vendor: ['preact']
},
// ...