indexOf

function Array.indexOf<T>(
    target: readonly T[],
    value: NoInfer<T>,
): number

Returns the first index at which value can be found in array, or -1 if it is not present.

Example

data-first

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

Array.indexOf([1, 2, 3, 2, 4], 2); // 1

data-last

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

pipe([1, 2, 3, 2, 4], Array.indexOf(2)); // 1