Thoughts, tips about programming and related subjects to make your job easier and more pleasant so you won't burnout quickly.
We all know what instanceof does. By definition The instanceof operator tests to see if the prototype property of a constructor appears anywhere in the prototype chain of an object. The return value is a boolean value. From: https://developer.mozilla.org/en-US/docs/Web/...
During my career as programmer I have created a lot of tools to tackle specific problems but I've never spent enough time to advertise or document them. Inspired by Naval's quote I've decided to change it.Open source means each problem only has to be...
Jest test runner has great feature for snapshot testing. A concept that greatly improves the process of writing tests. I'd like to briefly explain how it works and what you can do to improve even more. How snapshot testing work Let's start with an example...
I bet you already heard about JSON and you know that in order to convert regular an object to JSON you just need to call JSON.stringify and JSON.parse in order to get the object back. Short but not so beautiful story. The worst...
For several years node.js programmers have been using callbacks, promises and generators for managing asynchronous functions and honestly that was several years of pain. Every of above approaches had it's own pain points like handling exceptions, chaining, breaking a promise chain etc. But that...
Subscribe to our email newsletter to receive article notifications and regular updates. We don't spam and your email won't be shared with third-parties.