Nest each element of an array

I need my array of
const arr = [a, b, c, d, e, f]
to be nested, more specifically, every element to be so.
Meaning my desired effect is for the array to looks like this arr = [[a], [b], [c], [d], [e], [f]]

For the opposite of what I want to achieve, I could use arr.flat(), but that’s not the case here. So I’m looking for answers.

>Solution :

You want to perform something for every element of an array (in particular wrapping it inside another array). For performing an operation on every element of an array you can use Array.map().

const arr = [1, 2, 3];
const newArr = arr.map(item => [item]);
// newArr is [[1], [2], [3]]