Everybody in this industry know the ancient wisdom for which it's better avoid reinventing the wheel. Anyway, that's often necessary to really understand how things work. I did this in the past, when I've written my event delegation library, and I'm doing this again, with my implementation of Promise. In this post, we're going to rewrite the code step by step. »
Async functions is one of the most welcomed new features of JavaScript in recent years. Async functions drastically improve developer/user's experience when dealing with asynchronous tasks... One aspect in which they really shine is error handling, but there's a caveat you'd be better be aware of. »
Before continue reading, please, note that the post, depending on your knowledge, might not contain a trick at all. This is just me trying to memorize something I've searched lots of time on Google. In case you use C# Automapper it could be useful to you too! »
This won't probably be a ground breaking news, but it's surely relevant if you work on Node.js. These days Node.js community is debating on how to integrate Promises into native methods... It seems the error-first callback style won't disappear anytime soon, but for the Promise aficionados a new utility is going to join the party; let's meet util.promisify. »
Code reuse is important, but if you're not careful it can make more damage than good to your application. In this post I explore one of a such cases, and provide an alternative, still DRY-compliant, solution. The strawberries? Just read the post. »