[react-native] How to check the installed version of React-Native

I'm going to upgrade react-native but before I do, I need to know which version I'm upgrading from to see if there are any special notes about upgrading from my version.

How do I find the version of react-native I have installed on my Mac?

This question is related to react-native

The answer is

To see what version you have on your Mac(Window also can run that code.), run react-native -v and you should get something like this:

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If you want to know what version your project is running, look in /node_modules/react-native/package.json and look for the version key:

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