i want to use async await without then or any callback funcion, but if check is not working

Question

Hi i want to use async await without any callback wrapper like

.then(function(){});

or

something(anyparams,function(){});

in other words i want to use my code line by line by converting promise into async await

Problem: i'm successfully converted promise into async await if block is going wrong, how to fix that. expected output is "result: FFF"

Here is my code:

function getName () {
    return new Promise(function (resolve, rejected) {
        var name = "FFF";
        // wait 3000 milliseconds before calling resolve
        setTimeout ( 
            function() {
                resolve( name )
            }, 3000)
    })
}


async function foo () {
   console.log('Before Name');
   var name = await getName();
   console.log('After Name');
  return name;
}

var str = foo();

if(str == 'FFF'){
    alert('result: '+str);
}else{
   alert('entered wrong block');
}

`try catch` should do it – Gordon Freeman Aug 10 '20 at 16:24 — Gordon Freeman, Aug 10 '20 at 16:24

vzwick · Accepted Answer · 2020-08-10T16:24:18.567

1

You need to await your async function call as well like so:

var str = await foo();

edited Aug 10 '20 at 16:24

answered Aug 10 '20 at 16:23

vzwick

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This is true, but you can only `await` inside an `async` function. – Pointy Aug 10 '20 at 16:24
actually it worked for me,is the only solution, based on @Pointy comment i'm asking – EaB Aug 10 '20 at 16:25
@Pointy or with [top-level await](https://github.com/tc39/proposal-top-level-await) – vzwick Aug 10 '20 at 16:26
@EaB as long as your code is inside a module and the top-level await is working, you're good. – vzwick Aug 10 '20 at 16:28
anyway @vzwick thanks for your solution – EaB Aug 10 '20 at 16:29
1

@vzwick oh cool they fixed the older crazy idea and now it seems sane and useful – Pointy Aug 10 '20 at 16:31

i want to use async await without then or any callback funcion, but if check is not working

1 Answers1