TIL more Javascript Environments

POSTED ON: Jul 29, 2022

TAGS: javascript

Today I learned about more Javascript environments.

The ones we know very well are the popular ones.

V8 is Google's open-source Javascript engine. (Node is built on that!)

SpiderMonkey is Mozilla's Open-source Javascript Engine.

JavascriptCore is used in Apple's WebKit engine. (Bun uses JavascriptCore!)

I was thinking about some others:

AWS CloudFront Functions support a lot of Javascript, but are missing later features.
Bloomberg Terminal has it's own JS environment. (If you're not familiar with the Bloomberg Terminal, read about it here and here
Java-based Javascript environments, like GraalVM, or Nashhorn.
Hermes, which is a JS engine optimized for React Native.
Libjs, which is SerenityOS's Javascript Engine.
AppScripts, which is integrated with Google Docs. They swapped it out for node.
Espruino, which is Javacript for micro-controllers.

This is back to why Web Interop exists!
Because we have a specific Javascript standard (via ECMAScript Language Specs, by the TC39), and many many different companies/businesses who implement Javascript.

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