Removing log statements in Create React App without ejecting

Add this to index.js

if (process.env.NODE_ENV !== 'development') {
  console.log = () => {}
}

Note that this will only suppress the messages, it will not strip them from your deployed code.

Note Nov 2020

Don't do this for library modules, it will disable console.log for the parent project.

There is some movement on this issue on the CRA repo... go give it support/thumbs up here https://github.com/facebook/create-react-app/pull/9222

References: How to quickly and conveniently disable all console.log statements in my code?

If you just want to suppress log output you could wrap console.log and use that instead

const log = (...msgs) => {
  if (process.env.NODE_ENV === 'development') console.log(...msgs)
}

You can import / export this, but that sounds like a pain. Seems like a good thing to add to global

global.log = log

global.log('will only log in dev')