Javascript is now the most widely used and most popular programming language in the entire world. It was once considered a "toy" to make web pages do fun things. That is no longer the case. It has developed into a seriously hardcore functional programming language (it also has OOP capabilities) that can now run desktop software (mobile too) and web servers almost making scripting languages like PHP, Ruby,and Python obsolete. It is done taking the V8 engine out of the browser and into the desktop. That version of the engine is called Node.js. Since Fusion 360 already runs on a browser it only makes sense that it's next phase of evolution would be to add Javascript support (with API for interacting with Fusion elements) with HTML5 Canvas. This would facilitate the embedding of apps (or widgets) onto a 3D model or 2D drawing. Engineers as myself already skilled in Javascript wouldn't need to learn a whole new scripting language to create new apps.
