If you see JavaScript required to sign in error when using OneDrive, Skype, Teams or Office 365 apps, enable JavaScript in Chrome, Firefox, Edge.

Escape the single-threaded event loop in browsers and on the server. Here's how to use worker threads and web workers for modern multithreading in JavaScript.

A proxy script, also known as a Proxy Auto-Configuration (PAC) file, is a JavaScript function that specifies how web browser requests like HTTP, HTTPS, and FTP should be routed.