react : code splitting

output: {
    ...
    chunkFilename: ‘js/[name].min.js‘
    ...
}

optimization: {
    splitChunks: {
           cacheGroups: {
               default: false,vendors: false,vender: {
                  name: ‘vendor‘,chunks: ‘all‘,test: /node_modules/,reuseExistingChunk:true
        }
     }
 }