Awaiting function that resolves a promise with no arguments

Question

I have a function that resolves a Promise without passing any arguments:

const checkUser = (user)=> {
    let promise = Parse.Promise();

    if(user.success){
        promise.resolve();
    } else {
        promise.reject("Error");
    }
}

The problem is that in all tutorials that I read, they assign the returning value to a variable, like this:

let response = await checkUser(user);

In the above case, can I just await for the promise without assigning the result to a variable or this is not recommended? For example:

...
await checkUser(user);
...

Answer 1

Yes, you can totally do that. JavaScript will still wait for the promise to resolve.

Here is a modification of MDN's first example for await. It does not return a value but still waits for the Promise to resolve before running the code after await.

function resolveAfter2Seconds() { 
  return new Promise(resolve => {
    setTimeout(resolve, 2000);
  });
}

(async function() {
  console.log(1)
  await resolveAfter2Seconds();
  console.log(2);
})()