create-react-app项目添加less配置
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
}
],
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