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.

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 ...

As part of building a client-side application in a test-driven way and using TypeScript, Peter creates a Web API service and writes a test that proves he can access it from JavaScript code -- though ...

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.

Google’s mobile-friendly and rich results testing tools have been updated with featured designed for developers of JavaScript sites.