Webpack 4 “size exceeds the recommended limit (244 KiB)”

Question

I have two files which are combined under 600 bytes (.6kb) as below.

So how is it that my app.bundle.js is so large (987kb) and more importantly how does one manage

Answer 1

Simply use below code in webpack.config.js :

 performance: {
    hints: false,
    maxEntrypointSize: 512000,
    maxAssetSize: 512000
}

or follow

You can create multiple config file for (development, production). In dev config file use devtool or others necessary dev configuration and vice versa .

you have to use webpack-merge package and config package.json scripts code like

"scripts": {
 "test": "echo \"Error: no test specified\" && exit 1",
 "start": "webpack --open --config webpack.dev.js",
 "dev": "webpack-dev-server --mode development --open",
 "build": "webpack --config webpack.prod.js"
 },

For example :

create a file webpack.common.js

// webpack.common.js

  use your common configuration like entry, output, module, plugins,

Create webpack.dev.js

// webpack.dev.js
const merge = require('webpack-merge');
const common = require('./webpack.common.js');

module.exports = merge(common, {
mode: 'development',
devtool: 'inline-source-map',
devServer: {
    contentBase: './dist'
 }
});

Create webpack.prod.js

const merge = require('webpack-merge');
const common = require('./webpack.common.js');

module.exports = merge(common, {
    mode: 'production',
    performance: {
        hints: false,
        maxEntrypointSize: 512000,
        maxAssetSize: 512000
    }
});