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@std/bytes@0.208.0

denoland/std

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•JSR Score100%•

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Published2 years ago (0.208.0)

Utilities to manipulate Uint8Arrays that are not built-in to JavaScript

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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { includesNeedle } from "./includes_needle.ts";
import { assert } from "jsr:@std/assert@^0.208.0";

Deno.test("[bytes] includesNeedle", () => {
  const encoder = new TextEncoder();
  const source = encoder.encode("deno.land");
  const pattern = encoder.encode("deno");

  assert(includesNeedle(source, pattern));
  assert(includesNeedle(new Uint8Array([0, 1, 2, 3]), new Uint8Array([2, 3])));

  assert(includesNeedle(source, pattern, -10));
  assert(!includesNeedle(source, pattern, -1));
});