Promises are a central mechanism for handling ... (I’m not going to muddy the waters by showing an old-fashioned JavaScript function-with-argument-callback. Take my word for it, that gets ...

If you’re returning information from a then or catch handler, it will always be wrapped in a promise, if it isn’t a promise already. So, you never need to write code like this: If you are ...

The promises may be integrated to ES6 (harmony). Q is an implementation of the promises. Q is a module for promises in JavaScript. In node.js or JS on HTML, using asynchronous actions is usually coded ...

This document is a cheatsheet for JavaScript you will frequently encounter in modern projects and most contemporary sample code. This guide is not intended to teach you JavaScript from the ground up, ...

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 ...