FYI, async/await (a promise type + async function decoration + await expressions) was actually invented by C#. It was designed to operate seamlessly with .NET's

FYI, async/await (a promise type + async function decoration + await expressions) was actually invented by C#. It was designed to operate seamlessly with .NET's concurrency framework, the TPL, which uses a thread pool. So it was actually the case that Javascript took async/await and removed threading.