New & Upcoming Javascript / Web Platform Features
Pan / Tilt / Zoom Support for Camera in getUserMedia()
Javascript Logical Assignment Operators
Intersection Observer Now Also Accepts a Document as the Root Element
Javascript String.replaceAll() Method
Better Caching With stale-while-revalidate Directive in Cache-Control Header
Synchronous AJAX Will Not Work in Page Dismissal Events
Javascript globalThis Property
Javascript Hashbang Comment Syntax