This blog post describes the ECMAScript proposal “ShadowRealm API” by Dave Herman, Caridy Patiño, Mark S. Miller, Leo Balter, and Rick Waldron. Class ShadowRealm provides a new way of evaluating code at runtime – think eval() but better: Each instance has its own global JavaScript scope. Code is evaluated in that scope. If it changes global data, that only affects the ShadowRealm, but not the real global data.| 2ality.com
You'll soon be able to deploy JavaScript to Cloudflare's edge, written against an API similar to Service Workers.| The Cloudflare Blog
Worker threads#| nodejs.org
A JavaScript implementation of many web standards. Latest version: 25.0.1, last published: a month ago. Start using jsdom in your project by running `npm i jsdom`. There are 7519 other projects in the npm registry using jsdom.| npm
Class: vm.Script#| nodejs.org
V8#| nodejs.org
The Jest philosophy is to work great by default, but sometimes you just need more configuration power.| jestjs.io
Migrating Visual Studio Code to Electron process sandboxing| code.visualstudio.com