Copy static assets in Webpack

webpack.config.js

const CopyWebpackPlugin = require('copy-webpack-plugin');
const path = require('path');

const PATHS = {
    src: path.join(__dirname, 'src'), //absolute path to RepoDir/src
    dist: path.join(__dirname, 'dist') //absolute path to RepoDir/dist
}
module.exports = {
    entry: {
        //Webpack will automatically resolve it to RepoDir/src/js/index.js (if file name is not specified)
        //main: PATHS.src + '/js/app.js' //Webpack will resolve it to RepoDir/src/js/app.js
        main: PATHS.src + '/js'
    },
    output: {
        //Will resolve to RepoDir/dist 
        path: PATHS.dist,
        //[name] is placeholder for entry ie.. main from line `12`
        //So output file name will be main<somehash>.js
        filename: 'js/[name][hash].js'
    },
    plugins: [
        new CopyWebpackPlugin([
            {
                //Note:- No wildcard is specified hence will copy all files and folders
                from: 'src/assets', //Will resolve to RepoDir/src/assets 
                to: 'assets' //Copies all files from above dest to dist/assets
            },
            {
                //Wildcard is specified hence will copy only css files
                from: 'src/css/*.css', //Will resolve to RepoDir/src/css and all *.css files from this directory
                to: 'css'//Copies all matched css files from above dest to dist/css
            }
        ])
    ]
}