Sometimes, we want to use promise in forEach loop of array to populate an object with JavaScript.
In this article, we’ll look at how to use promise in forEach loop of array to populate an object with JavaScript.
How to use promise in forEach loop of array to populate an object with JavaScript?
To use promise in forEach loop of array to populate an object with JavaScript, we use the Promise.all method.
For instance, we write
const res = await Promise.all([...arr.map((i) => func())]);
to call Promise.all with an array of functions returned by arr.map.
func returns a promise which is run in parallel by Promise.all.
We get the results from the promises as an array with await.
Conclusion
To use promise in forEach loop of array to populate an object with JavaScript, we use the Promise.all method.
