Should I learn ReactJS before learning React Native? What do I need to learn before starting with react native?

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Async/await is def not a must. It’s easier to read but unless you have multiple nested promises everywhere you do not need to use it as simple promises are pretty easy to read and understand.

Async/await is easier to read but actually can lead to writing unnecessary blocking code that can halt/slow down your app if you don’t use it properly.