Why would webpack 4 generate files named 0.js, 1.js 2.js?

Each x.js file is created from dynamic import in your code.

Webpack supports import() & require.ensure() syntax.

Both of them supports chunk naming:

import() - with a comment

import(/* webpackChunkName: "my-chunk-name" */ 'my-comp');

require.ensure() - specifying the 4th parameter

require.ensure(['b'], function(require) {
   var c = require('c');
}, console.error, 'chunkName');
-----------------------^

Tags:

Webpack

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