学习配置webpack的时候报警告
The 'mode' option has not been set, webpack will fallback to 'production' for this value.
Set 'mode' option to 'development' or 'production' to enable defaults for each environment.
const merge = require("webpack-merge");
const baseWebpackConfig = require('./webpack.base.js');
module.exports=merge[baseWebpackConfig,{
mode: 'development',
devServer:{
host:'localhost',
port:'3000',
}
}]