promise-all.js

var p1 = new Promise((resolve, reject) => { 
  setTimeout(resolve, 1000, "one"); 
}); 
var p2 = new Promise((resolve, reject) => { 
  setTimeout(resolve, 2000, "two"); 
});
var p3 = new Promise((resolve, reject) => {
  setTimeout(resolve, 3000, "three");
});
var p4 = new Promise((resolve, reject) => {
  setTimeout(resolve, 4000, "four");
});
var p5 = new Promise((resolve, reject) => {
    setTimeout(reject, 6000, "reject"); //reject("reject");
});

Promise.all([p1, p2, p3, p4, p5]).then(value => { 
  console.log(value);
}, function(reason) {
  console.log(reason, "reason")
});