For server side developers, the idea of building an application mostly in JavaScript may seem pretty foreign. However, this appears to be a burgeoning trend on the client side. More and more ...

This guide explains exactly how you can test whether the JavaScript on your website renders properly. Plus: 7 tools for testing and debugging JavaScript.

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 ...

The Practical Client Building and Testing a Web API Service 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 ...

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

Jest is billed as a comprehensive JavaScript testing solution that works out of the box, configuration-free, for most JavaScript projects. Tests have unique global state and can be run in parallel.

Testing JavaScript code is a slog, especially if you aren't working with the right tools. Jonathan Freeman offers this handy primer for setting up a testing workflow with some of his favorites ...

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 ...