Repeat a promise-generating function until resolution

repeat_promise.js

function repeatPromise(func, attempts = 10, delay = 1000) {
  let attemptNumber = 0;
  return (function internalTry() {
    attemptNumber++;
    if (attemptNumber > attempts) {
      return Promise.reject('Number of attempts exceeded');
    } else {
      return func().catch(() => new Promise((resolve) => setTimeout(resolve, delay)).then(internalTry));
    }
  })();
};

// Usage
repeatPromise(()=>{ [... function that returns a promise ...] }, 15, 1000)
  .then(console.log)
  .catch(console.warn);