[nicoburns]

> Not sure you can attribute async to frontend development.

Not trying to do that. But (unlike C++), you have to understand async to use JavaScript sensibly. If for whatever reason you haven't come across it another language, then you might struggle (esp. if you're coming from C or C++ where the skills required are very different).

[bfrog]

Embedded systems are entirely event driven, often using a large number of callbacks as c function pointers. Really not much different actually.

[nitrogen]

Async isn't that different from passing in a function pointer in C that you expect to get called later.