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Global

This module contains various APIs & flags that are in JavaScript global scope.

Global.__DEV__​

This is the development flag known in JavaScript as just __DEV__.

You can use it like this:

open ReactNative

let environmentText = if Global.__DEV__ {
  "This is development"
}
else {
  "This is production"
}

Global.hermesInternal​

This is the HermesInternal value known in JavaScript as global.HermesInternal.

You can use it like this:

open ReactNative

let isHermes = () => Global.hermesInternal != None