insertAtOr

insertAtOr(array, index, value, fallback)

Inserts value at the specified index in array, returning a new array with the inserted element, or fallback if the index is out of bounds.

data-first

insertAtOr([1, 2, 3], 10, 99, []); // []

data-last

pipe([1, 2, 3], insertAtOr(10, 99, [])); // []