JavaScript Kicks - JSK Daily for Jul 30, 2021

I have something rather embarrassing to admit. At some point, for reasons that I can't remember, when I switched over to using a MacBook about a decade ago, I somehow got it in my head that the event.metaKey represented a "generic modifier" that worked across operating systems...

Ben Nadel

Using the new in-built JavaScript debugger in Visual Studio code you can use the browser developer tools Console right inside the editor. I just published a "TikTok" style video on the official Visual Studio Code channel explaining this and - after lots of criticism for the qu...

Christian Heilmann

In this article, I want to talk about the useEffect hook which I think is the best part of React hooks. The useEffect hook is perfect for handling side effects caused by mounting, un-mounting, changing state, etc. In order to understand how the useEffect hook works we first ne...

JavaScript In Plain English

How to run a single test multiple times by using cypress-grep and CircleCI pipeline Sometimes you add a new end-to-end test and ask yourself: "Is this test flake-free? Is it reliable?" If a new test is unreliable, you are bound to break other people's test runs....

Gleb Bahmutov

After three years working on JavaScriptCore (JSC), I recently had the opportunity to work on optimizing one of our standard library functions for the first time. I thought it'd be interesting to share what I learned about how they work in JSC and how we make them faster....

WebKit

A module is a function or group of similar functions. They are grouped together within a file and contain the code to execute a specific task when called into a larger application. You create modules to better organize and structure your codebase. You can use them to break dow...

Kingsley Ubah

In this article, we will be covering all the major aspects and features of JavaScript, unlike conventional blogs that contain only the regular details of any other programming language. A browser is a software application that gives access to information on the World Wide Web....

JavaScript In Plain English

In this tutorial, we are going to learn about how to clean the extra packages in a node_modules folder that are not present in the package.json file using npm. To remove the node_modules folder packages that are not present in the package.json file, we can use the npm prune co...

Sai gowtham