webpack4和webpack5区别4---自动清除打包目录

webpack4   自动清除打包目录

需要使用clean-webpack-plugin插件

const {CleanWebpackPlugin} = require('clean-webpack-plugin');
module.exports = {plugins: [new CleanWebpackPlugin()}
}

webpack5   自动清除打包目录

module.exports = {output: {clean: true}
}