promise3.js

Promise.All( [somePromise, anotherPromise, andAFinalPromise] ).then( values => {
  //values is an array with the resolves from each of the promises.
}).catch( (err) => {
  // if one of the promises rejects, the whole fails.
});

Promise.race( [somePromise, anotherPromise, andAFinalPromise] ).then ( value => {
  // value is a single value from the promise that resolved or rejected first.
});