Minified code outside of NODE_ENV === 'production'. This means slower development build of Redux

Question

So this is the full error: You are currently using minified code outside of NODE_ENV === \'production\'. This means that you are running a slower development build

Answer 1

You need to add:

  new webpack.DefinePlugin({
    'process.env': {
      'NODE_ENV': JSON.stringify('production')
    }
  })

For your production config

Answer 2

Setting "mode" helped to fix the issue like below with webpack 4, either you can use value for mode :development/production for an appropriate configuration file.

module.exports = {
  mode: 'development'
};