Why is this Promise object's status 'fulfilled'?

Asked Jul 19 '20 at 23:20

Active Jul 19 '20 at 23:26

Viewed 265 times

If asynchronous functions execute after the main thread, then why does k, printed to the console, have [[PromiseStatus]]: "fulfilled". Surely a promise can only be fulfilled when it's successfully completed its asynchronous behaviour. Shouldn't it be 'pending' or something? It does say pending somewhere if you look at the picture.

function fetchDog(){
  k = fetch("https://dog.ceo/api/breeds/image/random") 
  console.log(k);
};

fetchDog();

asked Jul 19 '20 at 23:20

tonitone14

Hover over the blue “i”. – Ry- Jul 19 '20 at 23:22
in the debugger - it might be evaluated later. – Daniel A. White Jul 19 '20 at 23:22
It initially shows pending but by the time you expand it, it's already fulfilled. – Bren Jul 19 '20 at 23:24
3

Objects in console are not snapshots, they are live objects that reflect modifications after you log them – charlietfl Jul 19 '20 at 23:25
@charlietfl This exactly - was having a hard time wording it. – Bren Jul 19 '20 at 23:26
1

So after logging to the console the promise object, it then resolves and updates. That's why we can see a `[[PromiseValue]]` too. Think I got it, thanks – tonitone14 Jul 19 '20 at 23:30
2

Simple example is `let o ={}; console.log(o); o.foo='bar';` then expand that object – charlietfl Jul 19 '20 at 23:32

Why is this Promise object's status 'fulfilled'?

0 Answers0