Now that we’ve covered some of the basic concepts and implementation of promises, let’s take a look at three promises gotchas that I’ve seen trip up developers as well as some tricks that ...

items.reduce(function(promise, item) { return promise.then(function ... "ECMAScript 2015 (formerly known as ES6) introduces a completely new feature and concept to the front-end JavaScript world that ...

Its purpose is to let developers test if a JavaScript object is a "Promise," with the function returning a boolean result of yes or no when used in production. Despite being just two lines of code ...