添加和清除文件

1、添加

output:{  //出口文件
        path:path.resolve(__dirname,'dist'),
        filename:'bundle.js'
  // 添加filename:'[hash]-bundle.js'
  //filename:'[hash]-[name]-bundle.js'
    },

2、清除

清除dist目录下需要的文件,只剩filename:’bundle.js’对应的bundle.js文件

cnpm i clean-webpack-plugin -S

+ const {CleanWebpackPlugin} = require("clean-webpack-plugin");
const config =  {
    ...
    plugins:[
      ...
+      new CleanWebpackPlugin()  
    ],
    mode:'development'  //模式
}