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std/collections/find_last.ts

Deno standard library
denoland/deno_std
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// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
import { Predicate } from "./types.ts";
/** * Returns the last element in the given array matching the given predicate * * Example: * * ```typescript * const numbers = [ 4, 2, 7 ] * const lastEvenNumber = findLast(numbers, it => it % 2 === 0) * * console.assert(lastEvenNumber === 2) * ``` */export function findLast<T>(  array: Array<T>,  predicate: Predicate<T>,): T | undefined {  for (let i = array.length - 1; i >= 0; i -= 1) {    const element = array[i];
    if (predicate(element)) {      return element;    }  }
  return undefined;}