Es6 and Promise example

Promise.js

var pr1 = new Promise((resolve, reject) => {
    setTimeout(function () {
        resolve([1,3,4,46,234,33,4,536]);        
    }, 500);
})

var pr2 = new Promise((resolve, reject) => {
    setTimeout(function () {
        resolve(20);        
    }, 1000);
})

let printValues = (values) => {
    console.log('Values: ', values);
}

Promise
    .all([pr1, pr2])
    .then(printValues)