There are a number of asynchronous tools in JavaScript, and there are also asynchronous tools in popular libraries that extend JavaScript. And there are many uses for these technologies.

You can learn about the fundamental asynchronous JavaScript tools in posts here on the Twilio blog: There is a post devoted to each technology, and they’re summarized in the post:

Asynchronous JavaScript: A Comprehensive Guide

When you’re learning any new programming tool or technique it’s helpful to have examples of how to use the code in realistic situations, so in addition to covering the fundamentals we have a series of posts showing practical demonstrations of how to use asynchronous code.

Confirming SMS Message Delivery with RxJS Observables, Node.js, and Twilio Programmable SMS

You’ll learn a couple of important things from this post: 1) how to create an Observable wrapper around an API request so your code gets a notification when the status of the request changes and 2) how to send SMS messages from Node.js with Twilio Programmable SMS. Together, these techniques enable you to verify the status of an SMS message in real time. To help you visualize the sequence of events the post includes sequence and interaction diagrams. It’s a fun project to try, and it gives you practical experience with RxJS Observables with code you can reuse in your projects.

#code #tutorials and hacks #javascript