Zepto is described as “a minimalist JavaScript library with a largely jQuery-compatible API.” Developers who know jQuery already know how to use Zepto, its makers go on to say.

React maintains its own virtual DOM in memory, and updates the browser DOM as needed. The React team talks about re-render times on the order of 1 millisecond, which is so fast that React doesn ...

Facebook has completely rewritten React, its popular JavaScript library for building user interfaces. The company hasn't previously talked about React Fiber, as the project is called, but it has ...

Meta is transferring its popular open-source JavaScript testing framework, Jest, to the OpenJS Foundation. Jest is one of Meta's top open-source projects and has proven a popular tool for testing ...