Async await strange behaviour with functions

Question

I have following asynchronous code example:

// Functions

function getSomePromise() {
    let a = new Promise((resolve, reject) => {    
        setTimeou         


        

Answer 1

Looking at the comments

@HMR - hm... I not understand - in question example there is async function someWrapper() but that function don't return anything (it even doesn't have return statement (!) ) - can you explain what do you mean by async functions immediately return a promise? - Kamil Kielczewski

it seems you don't understand the async await. I usually advice people to lay off await until you understand promises. However in next comment under question I give you the answer:

someWrapper will immediately return a promise that resolves to undefined. The await only "waits" in the someWrapper function but the function calling someWrapper will immediately receive a promise that resolves in undefined. Functions always return something, if you don't in code then it will return undefined. If it's an async function without a return then it'll return a promise that resolves in undefined - HMR.

Await is syntax sugar (nicer looking code) for promises and doesn't actually wait for anything.

Maybe the following code clears things up:

var test = async () => {
   await 22;//doesn't even matter if value is promise
   console.log("after wait");
}
var result = test();
console.log("outside test we don't wait for anything",result);

If you don't understand why the output of that code is:

outside test we don't wait for anything Promise {< pending >}

after wait

Then I'd advice you to use just promises, until you do.