Where in this case to take the keys for the elements?

Question

React

Good day.
I'm writing a React Native weather app.

I'm making an API request, and then I'm rendering weather components using the .map() method.

But I don't know where to get the key for the key property.
Response items don't have a key

Please tell me how to set the keys in this case?

Answer 1

In this case, just take it in order:

data.map((elem, i) => <Component data={elem} key={i}/>)

Answer 2

You can use the element index if you don't mean deleting the array elements.