生产环境下隐藏console日志输出

chainWebpack: config => {
    config.when(process.env.NODE_ENV === 'production', cnf => {
        cnf.devtool('source-map')
        cnf.optimization.minimizer('terser').tap((args) => {
          args[0].terserOptions.compress.drop_console = true // 移除 console.log
          return args
        })
        cnf.plugin('CompressionPlugin').use(CompressionPlugin).end()
      }).when(process.env.NODE_ENV === 'development',
        config => {
          config.devtool('source-map')
        }
      )
  }