The build directory was deleted by clean-webpack-plugin when webpack 4 started webpack-dev-server

< H2 > question < / H2 > In the

project, I first cooperate with NPM to execute the webpack command to build the code, in which clean-webpack-plugin is used to delete the previous build results before generating a new one.

After

, I use the webpack-dev-server-- open command with NPM to start the server, but at this time, clean-webpack-plugin will also be executed, and then the build directory generated when I first executed the webpack command will be deleted. What should I do?

< H2 > Code < / H2 >

package.json

"scripts": {
    "start": "webpack-dev-server --open",
    "build": "webpack",
 },

webpack.config.js

plugins: [
    // 
    new CleanWebpackPlugin([path.join(__dirname, "build")]),
],

devServer: {
    contentBase: "./build",
},

Webpack

Mar.09,2021

the config, of configuring webpack separately is divided into webpack.prod , webpack.base , and webpack.dev . I don't think 0 configuration is of any use.

or set the environment variable

"dev": "NODE_ENV=development webpack-dev-server"

if (process.env.NODE_ENV === 'development') {
    // xxxx
}

env-cross package for windows and mac compatibility

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