如何解决无限的Javascript承诺？

Question

I'm using the Apollo GraphQL library, and at one point it returns a promise. I can see that it's a resolved promise when I inspect it in the console:

Promise {[[PromiseStatus]]: "resolved", [[PromiseValue]]: Object}
__proto__
:
Promise
[[PromiseStatus]]
:
"resolved"
[[PromiseValue]]
:
Object

However, when I Promise.resolve(thatPromise ) I get back ... the same promise. No matter how many times I resolve the promise, it keeps returning a promise, making it impossible to access the promise's value.

I know the value is in there (if I inspect [[PromiseValue]] it's a plain object with values) ... I just can't figure out how to get it out at the code level instead of in the browser console.

Has anyone ever run in to something like this, and if so were you able to figure out how to extract the value of such an infinitely resolving promise?

PS I did try:

thatPromise['[[PromiseValue]]'];

but it appears to be a special browser value that you can't access from the code.

PPS Just realized it may or may not actually be a promise. I get it by calling response.clone().json() , so while it looks like a promise maybe it's just a clone of a promise, in which case that might explain why I can't resolve it. However, it doesn't explain how I can extract the value.

EDIT

I think there's weirdness going on here and I'm not reporting all of the relevant details. Will post more info as soon as I sort things out better (don't want to send anyone on a wild goose chase).

Answer 1

There's no reason for you to have to call Promise.resolve to get the value. Remember that Promises are asynchronous. You have to access it's value like this:

myPromise.then(value => {
  console.log(value)
  // do whatever you're going to do with value
};

You can read up more [here][1] on how Promises work.