By default, Jest runs tests in a “browser-like” environment using jsdom. This, however, is configurable. For example, if you’re building a…

When I first started writing websites, I thought of a web page as a page. That is, a piece of paper. 8.5” x 11”. But that’s not how it…

If you are taking advantage of ES Modules, whether through a extension or babel transpilation, it’s likely that you’re using the / syntax…

Jest is best known as a test runner, however, it can be used to run all sorts of things, including custom runners, Go, Python, etc. As part…

In languages like Java and C#, function overloading is quite popular. The way I understand it: instead of having multiple functions, you…