findLastIndexOrElse

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.

data-first

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

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

data-last

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

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