二.webpack打包less文件

• webpack默认不识别less,css,style文件,所以需要引入包
  • cnpm install less less-loader --save-dev //引入less
  • cnpm install --save-dev style-loader //引入style
  • cnpm install --save-dev css-loader //引入css

const path = require("path");
module.exports = {
    //入口
    entry:"./src/js/index.js",
    output:{
        path:path.resolve(__dirname,"build"),
        filename:"./js/build.js"
    },
    mode:'development',
    //使用webpack打包的配置文件
    module: {
        rules: [
          {
            test: /\.less$/i,
            use: [
              {
                loader: 'style-loader',
              },
              {
                loader: 'css-loader',
              },
              {
                loader: 'less-loader',
                options: {
                  lessOptions: {
                    strictMath: true,
                  },
                },
              },
            ],
          },
        ],
    },
}