effect-io-ai

Package: effect
Module: Array

Array.findLastIndex

Return the last index for which a predicate holds.

Example

import { Array } from "effect"

const result = Array.findLastIndex([1, 3, 8, 9], x => x < 5)
console.log(result) // Option.some(1)

Signature

declare const findLastIndex: { <A>(predicate: (a: NoInfer<A>, i: number) => boolean): (self: Iterable<A>) => Option.Option<number>; <A>(self: Iterable<A>, predicate: (a: A, i: number) => boolean): Option.Option<number>; }

Source

Since v2.0.0