API calls for each element on array ( React )

Question

I'm trying to make an API call for each element on the array and I tried:

let requests = array.map(elem=> {
        return new Promise((resolve, reject) => {
           API.update(elem).then(data => data);
        })
     })
     Promise.all(requests);

but I see in the network the (elem) is undefined and I don't recognize why this happned.

Answer 1

Can you post the full context of your code so we can see the array that you're mapping over?