This article is a crash course in writing maintainable JavaScript. We'll add features to a running example by iteratively following a simple principle: write a unit test, make it pass. Each test ...

Microsoft today launched BrowserSwarm, an open source tool to help Web developers automate testing of their JavaScript frameworks and libraries across devices and browsers. To take advantage, all ...

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 ...

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

Practical .NET Test Driving a JavaScript MVC Framework Peter looks at Knockout, one of the MVC environments for writing client-side JavaScript, and wonders if we're on the wrong path. By Peter Vogel ...

Google has updated the mobile-friendly test and the rich results test tools to support JavaScript sites better. Google posted on Twitter that you now will see rendered HTML, console log ...

Google has updated its Octane speed test for measuring JavaScript performance, expanding its scope and rounding out the benchmark with computing tasks from rival browser makers Mozilla and ...

Trying to improve more than just a browser's JavaScript program speed, Google lets fly with a new browser benchmark. It wants others to help improve the test, but Microsoft's IE team derides it.

This article by Dennis Byrne is a crash course in writing maintainable JavaScript. Dennis uses stubs, mock objects and a little bit of dependency injection. He also uses JsUnit to run unit tests ...