Menu
The keyword await is used to wait for a Promise. It can only be used inside an async function. This keyword makes JavaScript wait until that promise settles and returns its result. Here is an example with a promise that resolves in 2 seconds.
To resolve the promise, we called the then() method on the promise object. The function we passed to the then() method gets called with the resolved value as a parameter. We can access this value in the body of the function. Notice that we also used the catch() method.
race() , which returns the first settled value (either fulfillment or rejection), this method returns the first fulfilled value.
The fulfilled value is an empty array. If a nonempty iterable is passed, and all of the promises fulfill, or are not promises, then the promise returned by this method is fulfilled asynchronously.
If I have two promises A and B, only one of which will succeed, how can I get whichever one fulfills successfully? I'm looking for something similar to Promise.race, but which will return only the first promise that fulfills. I'm using promises from ES6.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With