In this post, I will show you how to create a simple Chrome extension, using just JavaScript, HTML and CSS. I will also summarize all what a Chrome extension can do, and I will introduce how to create more complex extensions based on modern JavaScript frameworks like React, Angular or Vue.

This post shows how to add tests to JavaScript code that uses Date or moment functions. I will explain how to mock dates and how to make tests independent from the timezone.

An effort to expose the advantages of RxJS so that people realize it can potentially make their code cleaner and their lives easier.