C# had async/await long before Javascript/node. Not that big a revelation ;-)

ajross · 2025-11-01T16:16:39 1762013799

.NET wasn't the first either. Lisps were doing continuations in the 70's.

But "invented" and "revealed" are different verbs for a reason. The release of node.js and it's pervasively async architecture changed the way a lot of people thought about how to write code. For the better in a few ways. But the resulting attempt to shoe-horn the paradigm into legacy and emerging environments that demanded it live in a shared ecosystem with traditional "blocking" primitives and imperative paradigms has been a mess.

mrsmrtss · 2025-11-01T16:57:02 1762016222

I think you're underestimating the role of .NET in this. It was .NET that popularized this concept for the masses, and from there it spread to other languages including JavaScript, which also borrowed the exact same async/await keywords from C#.