While loops using Await Async.

Question

This Javascript function seems to use the while loop in an asynchronous way. Is it the correct way to use while loops with asynchronous conditions?

 var Boo         


        

Answer 1

Is it the correct way to use while loops with asynchronous conditions?

Yes, provided that getBar and getBar3 are asynchronous functions (marked as async or just returning a Promise).

Of course the execution should be inside an asynchronous context (inside async function)

A possible issue that I can see is that initially there are 2 executions of getBar with the same i and the rest of executions use a mismatched i between while and if. If this is not the desired behavior perhaps a more correct version would be:

    (async ()=>{
     while(await getBar(i)) {    
        if (await getBar3(i)) {
          //do something
        }
        i++;
      }
    })();

See a mocked example here