> In reality, many users of React test on local and immediately deploy into production. > deploy on dev using the artefacts from npm run build These two state

> In reality, many users of React test on local and immediately deploy into production. > deploy on dev using the artefacts from npm run build These two statements do not fit together. I agree that "You should have dev/test/staging/... environments" is the correct answer, but clearly that's not the reality for everyone.