How to wait for a JavaScript Promise to resolve before resuming the function?

Estimated read time 2 min read

To wait for a JavaScript Promise to resolve before resuming the function, you can use either the async/await syntax or the .then() method.

Here’s an example using async/await:

async function myFunction() {
  const result = await myPromise();
  // code here will execute after the promise has resolved
}

function myPromise() {
  return new Promise((resolve, reject) => {
    // code that does some work and resolves the promise
  });
}

In this example, the myFunction is marked as async and uses the await keyword to pause execution until myPromise has resolved. When the promise resolves, the value is returned and stored in the result variable, and the function can continue executing.

Alternatively, you can use the .then() method to handle the resolved value of the promise:

function myFunction() {
  myPromise().then(result => {
    // code here will execute after the promise has resolved
  });
}

function myPromise() {
  return new Promise((resolve, reject) => {
    // code that does some work and resolves the promise
  });
}

In this example, the myFunction calls myPromise and chains a .then() method to handle the resolved value. When the promise resolves, the function passed to .then() is executed, and can access the resolved value.

Both approaches achieve the same result of waiting for the promise to resolve before resuming the function.

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