webpack打包依赖loader

webpack打包依赖loader

1.打包css依赖

npm install --save-dev css-loader

配置webpack.config.js文件

{
    
    
    test:/\.css$/,
        use:['style-loader','css-loader']
}

2.打包less依赖

npm install less less-loader --save-dev

npm install less less-loader --save-dev

{
    
    
    test: /\.less$/,
        use: [
            {
    
    
                loader: "style-loader",
            },
            {
    
    
                loader: "css-loader",
            },
            {
    
    
                loader: "less-loader",
            },
        ],
}

3.打包img

npm install url-loader --save-dev

npm install file-loader --save-dev

{
    
    
    test: /\.(png|jpg|gif)$/,
        use: [
            {
    
    
                loader: 'url-loader',
                options: {
    
    
                    //如果小于limit的限制则打包的时候会把图片转成base64，如果大于limit则会直接打包图片文件进行引用(file-loader)
                    limit: 1000,
                    name: 'img/[name].[hash:8].[ext]',
                },
            },
        ],
},

4.ES6转换成ES5

npm install babel-loader@7 babel-core babel-preset-es2015 --save-dev

{
    
    
    test: /\.m?js$/,
        exclude: /(node_modules|bower_components)/,
            use: {
    
    
                loader: 'babel-loader',
                    options: {
    
    
                        presets: ['es2015']
                    }
            }
}