Promises alternative to async await http://www.es6fiddle.net/iv2vj8jm/

promises.js

console.log("First");
var p = new Promise((ok, reject) => {
 try {
   console.log("Second");
   ok();
 } catch (err) {
   reject();
 }
});
p.then(() => {console.log("Fourth")})
console.log("Third");