[thom]

Given broad support for the Web Audio API these days I can’t think of anything that’s not been standardised, unless you wanted some form of preloading baked into the spec. ActionScript had actual integer types, if I remember correctly.

As others have said, it’s mostly tooling and workflow. As much as I’d like to sneer at Flash in general, my experience with it on projects was positive. The IDEs and tools were good, you could approach everything code first with unit tests. The process of cutting up PhotoShop PSDs from a designer and building UIs in FlashBuilder, while orchestrating everything in code in an MVC style was very pleasant.