因为配置less需要修改react的配置文件，所以要把项目配置文件抽离
1 | $ yarn eject |
会多出config和script文件夹
接下来安装less
yarn add less less-loader 或者 npm install less less-loader安装完成后打开config文件夹，找到webpack.config.js文件
在css loader 前面添加 less配置 下载对应的style-loader 、css-loader 、postcss-loader 、less 、less-loader
{
test: /\.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'),
options: {
modules: false,
javascriptEnabled:true,
modifyVars: {
"@primary-color": "#f9c700"
}
}
}
],
},
