Detecting production vs. development React at runtime

Question

Is it possible to detect whether the current version of React is development or production at runtime? I\'d like to do something like this:

if (React.isDevelopme         


        

Answer 1

I wanted access to this from the index.html and desired a solution which didn't involve ejecting webpack or configuring it with additional modules and I came up with this.

Sources are David's answer above and the create-react-app documentation for using environment variables in the html file

if ( ! '%NODE_ENV%' || '%NODE_ENV%' === 'development') {
  // dev code
} else {
  // production code    
}