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Module

std/bytes/ends_with.ts

The Deno Standard Library
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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.
/** * Returns `true` if the suffix array appears at the end of the source array, * `false` otherwise. * * The complexity of this function is `O(suffix.length)`. * * @param source Source array to check. * @param suffix Suffix array to check for. * @returns `true` if the suffix array appears at the end of the source array, * `false` otherwise. * * @example Basic usage * ```ts * import { endsWith } from "https://deno.land/std@$STD_VERSION/bytes/ends_with.ts"; * * const source = new Uint8Array([0, 1, 2, 1, 2, 1, 2, 3]); * const suffix = new Uint8Array([1, 2, 3]); * * endsWith(source, suffix); // true * ``` */export function endsWith(source: Uint8Array, suffix: Uint8Array): boolean { const diff = source.length - suffix.length; for (let i = suffix.length - 1; i >= 0; i--) { if (source[diff + i] !== suffix[i]) { return false; } } return true;}