3 ms·
Async methods also allow you to return values which will be returned as futures. For example: return 4; If the function is marked async, the return value s
by qqqwww 8y ago
Async methods also allow you to return values which will be returned as futures.
For example:
return 4;
If the function is marked async, the return value should be Future<int>.
If you allow a non-async method use await, you get into this situation:
Future<int> foo(){
int result = await something ();
// How to return "result" and still make compiler happy?
}
- ridiculous_fish 8y agoWhy not just some generic function T -> Future<T>? It sounds like the async keyword allows for a particular implicit type conversion within the function body, but on return statements only. That's a pretty thin justification for a keyword.