Arquero, from the University of Washington Interactive Data Lab, is probably best known to users of Observable JavaScript, but it’s available in other ways, too. One of these is Node.js.

Twitter released a video feature ... a javascript animation framework that lets you code on one half your window and see the outcome on the other. That simple WYISWYG functionality is easy ...

JavaScript is getting mocked, but in a good way. The JavaScript-based ... up an http server that returns the fake data.” Kakapo features routing, response, request, and database capabilities ...