Sometimes, we want to map multiple arrays with JavaScript.

In this article, we’ll look at how to map multiple arrays with JavaScript.

How to map multiple arrays with JavaScript?

To map multiple arrays with JavaScript, we can use the map method.

For instance, we write:

const zip = (a1, a2) => a1.map((x, i) => [x, a2[i]]);

const arr1 = ['a', 'b', 'c'];
const arr2 = [1, 2, 3];
console.log(zip(arr1, arr2))

to define the zip function that calls a1.map to combine the entries from a1 and a2 with index i into one entry.

Then we call zip with arr1 and arr2 to zip them into one array.

As a result, the array logged is [["a", 1], ["b", 2], ["c", 3]].

Conclusion

To map multiple arrays with JavaScript, we can use the map method.