使用create-react-app
创建的项目默认不支持less
,以下增加less
配置的步骤
暴露配置文件
create-react-app
生成的项目文,看不到webpack相关的配置文件,需要先暴露出来,使用如下命令即可:
npm run eject
安装less-loader
和 less
npm install less-loader less --save-dev
修改webpack
配置
修改 webpack.config.dev.js
和 webpack.config-prod.js
配置文件
改动1:
/.css$/
改为 /.(css|less)$/,
, 修改后如下:
exclude: [ /.html$/, /.(js|jsx)$/, /.(css|less)$/, /.json$/, /.bmp$/, /.gif$/, /.jpe?g$/, /.png$/, ],
改动2:
test: /.css$/
改为/.(css|less)$/
test: /.css$/
的use
数组配置增加less-loader
- 修改后如下:
-
{ test: /.(css|less)$/, use: [ require.resolve('style-loader'), { loader: require.resolve('css-loader'), options: { importLoaders: 1, }, }, { loader: require.resolve('postcss-loader'), options: { // Necessary for external CSS imports to work // https://github.com/facebookincubator/create-react-app/issues/2677 ident: 'postcss', plugins: () => [ require('postcss-flexbugs-fixes'), autoprefixer({ browsers: [ '>1%', 'last 4 versions', 'Firefox ESR', 'not ie < 9', // React doesn't support IE8 anyway ], flexbox: 'no-2009', }), ], }, }, { loader: require.resolve('less-loader') // compiles Less to CSS } ], },