How is the Promise.any() method different from the Promise.race() method in JavaScript?

In this article, you will learn how the Promise.any() method differs from the Promise.race() method in JavaScript.

The Promise.any() method in JavaScript is one of the Promise concurrent methods. It is useful when the first task needs to be completed.

The Promise.race() method in JavaScript is one of the Promise concurrency methods. It is useful when the first asynchronous task needs to complete but does not care about its final status (i.e. it can succeed or fail).

Example 1

In this example, let’s see how the Promise.any() method works

console.log("Defining three promise values: promise1, promise2 and promise3");
const promise1 = Promise.resolve(1);
const promise2 = new Promise((resolve, reject) => {
   setTimeout(resolve, 2 , 'Promise Two');
});
const promise3 = 3;

console.log("Running Promise.any method on all the three promise values")

Promise.any([promise1, promise2, promise3]).then((values) => console.log(values));

illustrate

• Step 1 - Define three Promise values, Promise1, Promise2, Promise3 and add values ​​to them.

• Step 2 - Run the Promise.any() method on all Promise values.

• Step 3 - Display the promise value as the result.

Example 2

In this example, let’s see how the Promise.race() method works

console.log("Defining three promise values: promise1, promise2 and promise3");
const promise1 = Promise.resolve(Resolving first async promise);
const promise2 = new Promise((resolve, reject) => {
   setTimeout(resolve, 2 , 'Promise Two');
});
const promise3 = 3;

console.log("Running Promise.race method on all the three promise values")

Promise.race([promise1, promise2, promise3]).then((values) => console.log(values));

illustrate

• Step 1 - Define three Promise values, Promise1, Promise2, Promise3 and add values ​​to them.

• Step 2 - Run the Promise.race() method on all Promise values.

• Step 3 - Display the promise value as the result.

The above is the detailed content of How is the Promise.any() method different from the Promise.race() method in JavaScript?. For more information, please follow other related articles on the PHP Chinese website!