Mark Michaelis walks you through the Visual Studio tooling and project setup you'll need to get the most out of your JavaScript unit testing. As I detailed in my recent article "A TypeScript Primer," ...

JavaScript has the capacity to break a whole lot of different things on a website for both users and search engines. Thus, many SEO professionals and digital marketers are distrustful of JavaScript as ...

Have you ever seen "NaN" appear on a badly coded website? Or been perplexed by a persistent bug, only to find out that it's some quirk with the language? The problem is partly to do with your ...

From simple test runners to complete testing frameworks, look to these proven tools to keep your JavaScript free of bugs The need to test JavaScript code is straightforward. How else to keep out the ...

Let me say this as simply as possible: You need to test your JavaScript code. Yes, I understand how easy it is to drag your feet when you don’t know about the tools ...

Attempts to impose type on JavaScript just don't seem to work unless you turn JavaScript into a completely different language. We have already embarked on a consideration of how to live without type ...

Meta hands its open-source Jest JavaScript testing framework to the OpenJS Foundation to let the project flourish as a community-led initiative. Meta is transferring its popular open-source JavaScript ...

Vitest is available in the new main version 4.0. Updates are available for, among others, the browser mode, handling the end-to-end testing framework Playwright, and debugging with the Visual Studio ...

In mid-November 2009, at a meeting of my research group in Chicago, I proudly unveiled the most recent beta of the software I'm writing for my PhD dissertation, a Web application (written in Ruby on ...

Google has updated most of its testing tools with Googlebot evergreen rendering, which improves how the tools process modern websites. Previously, Google’s testing tools were rendering websites as ...