How to remove old files from the build dir when webpack --watch? [duplicate]

Answer 1

I have a build.js file which I execute with node. In that file I import the configuration of webpack from the webpack.config.js. I save all configuration in a variable called config.

require("shelljs/global");

var webpack = require('webpack');
var conf = require('./webpack.config.js');
var ora = require('ora');

var spinner = ora('chargement...');
spinner.start();
// I use the rm command that is provide by the module "shellsjs/global"
rm("-rf", "build");

webpack(conf, function(err, stats){
    spinner.stop();
    if(err) throw error
    process.stdout.write(stats.toString({
        color:true,
        modules:false,
        children:false,
        chunk: false,
        chunkModule:false
    }) + '\n')
})