findLastIndexOrElse

Array.findLastIndexOrElse(target, predicate, orElse)

Returns the index of the last element in target that satisfies the provided predicate function. If no element satisfies the predicate, calls orElse with the original array.

Example

data-first

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

Array.findLastIndexOrElse(
    [1, 3, 2, 4],
    (x) => x > 2,
    () => -1,
); // 3

Array.findLastIndexOrElse(
    [1, 2, 3, 4],
    (x) => x > 5,
    (arr) => arr.length,
); // 4

data-last

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

pipe(
    [1, 3, 2, 4],
    Array.findLastIndexOrElse(
        (x) => x > 2,
        () => -1,
    ),
); // 3

pipe(
    [1, 2, 3, 4],
    Array.findLastIndexOrElse(
        (x) => x > 5,
        (arr) => arr.length,
    ),
); // 4