App awareness of production state vs development state


How can I execute some code only in production environment and not execute when in it is in localhost:3000 ?


Those are two different questions :smiley: For the first, you can use something like:

if (process.env.NODE_ENV === 'production') { ... }
if (process.env.NODE_ENV === 'development') { ... }

Presumably that’s all you need but if you really want to check if you’re on localhost:300, on the client only, you can of course use:

if ( === 'localhost:3000') { ... }

There’s also a location.hostname and location.port for the individual components.