findReplaceLastOrThrow

function Array.findReplaceLastOrThrow<T>(
    target: readonly T[],
    predicate: (
        value: NoInfer<T>,
        index: number,
        target: readonly NoInfer<T>[],
    ) => boolean,
    replacement: NoInfer<T>,
): readonly T[]

Finds the last element in array that satisfies the provided predicate function and replaces it with replacement, returning a new array with the replaced element, or throws an error if no element is found.

Example

data-first

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

Array.findReplaceLastOrThrow([1, 2, 3, 4], (x) => x > 2, 99); // [1, 2, 3, 99]

data-last

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

pipe(
    [1, 2, 3, 4],
    Array.findReplaceLastOrThrow((x) => x > 2, 99),
); // [1, 2, 3, 99]