side-effect-free-webpack-stat-plugin

Add side effect free flags to webpack build stats

Install

npm i --save-dev side-effect-free-webpack-stat-plugin

Usage

in webpack.config.js

const SideEffectFreeWebpackStatPlugin = require('side-effect-free-webpack-stat-plugin');
module.exports = {
	plugins: [new SideEffectFreeWebpackStatPlugin()],
	stats: {
		modules: true
	}
};

then in stats.json in each module will be 2 fields:

• sideEffectFreeModule will be true if module is side effect free due to sideEffects flag
• sideEffectFreeContent will be true if module code is side effect free, null for unknown state (webpack did not require to check this)