promises-all.js

// Promise.all()
//when you only want to run your code after ALL
// your promises are resolved.
// EG: fetching remote data from multiple locations

let p1 = () => Promise.resolve('Got the list of users');
let p2 = () => Promise.resolve('Got the list of tweets');
let p3 = Promise.resolve('Got the weather');

Promise.all([p1(), p2(), p3]).then((resultsArr)=>{
    console.log( resultsArr[1] );
    console.log( resultsArr[0] );
    console.log( resultsArr[2] );
})