insertAtOr

function Array.insertAtOr<T, U>(
    target: readonly T[],
    idx: number,
    value: NoInfer<T>,
    or: U,
): T[] | U

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.

Example

data-first

import { Array } from "@monstermann/array";

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

data-last

import { Array } from "@monstermann/array";

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