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Step by step explanations of Promises including diagrams and a peek into implementing a polyfill

Updated: at 08:28 PM

If you want a walkthrough on the JavaScript Promises API, look no further

ECMAScript 6 promises (2/2): the API

Dr. Axel Rauschmayer from ②ality writes

This blog post is an introduction to asynchronous programming via promises in general and the ECMAScript 6 (ES6) promise API in particular. It is second in a series of two posts - part one explains foundations of asynchronous programming (which you may need to learn in order to fully understand this post).

The ECMAScript 6 promise API is easy to polyfill for ECMAScript 5.

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