Is it possible to use operators like map filter etc with promises

Question

Can you tell me Is it possible to use operators like map, filter etc with promises

Answer 1

No, you cannot directly use map, filter, etc., on a Promise itself because these operators are meant for arrays, not Promises.

Firstly, wait for the Promise to resolve then use the array methods:

const promise = Promise.resolve([1, 2, 3]);

promise.then(array => {

  const result = array.map(x => x * 2);

  console.log(result); // [2, 4, 6]

});