Well it is only useful when you really rely on asynchronous programming. Nobody states that every piece of code is supposed to be written like this. You should only use async/await when a thorough performance analysis shows that it is your bottleneck.
Think of handling a web request, where you have to do parallel I/O requests to subsystems like a database, a webservice, redis, and so on. I think async/await gives us a nice standard way of describing "hit me back once X is done".
Think of handling a web request, where you have to do parallel I/O requests to subsystems like a database, a webservice, redis, and so on. I think async/await gives us a nice standard way of describing "hit me back once X is done".