Promise.race

Implement your own version of Promise.race that returns the first settled promise.

Requirements:

• Return a Promise that settles with the first settled promise
• Can either resolve or reject based on the first settled promise

Example:

const p1 = new Promise(resolve => setTimeout(() => resolve('slow'), 500));
const p2 = new Promise(resolve => setTimeout(() => resolve('fast'), 100));

promiseRace([p1, p2]).then(value => {
  console.log(value); // 'fast'
});