bench.ts

import { bench, runBenchmarks } from "https://deno.land/std/testing/bench.ts";

bench({
  name: "normalArray",
  runs: 10000,
  func(b): void {
    const values = [];
    for (let x = 0; x < 100; x++) {
      for (let y = 0; y < 100; y++) {
        values.push({ a: 1, b: 2 });
      }
    }

    b.start();
    for (const v of values) {
    }
    b.stop();
  },
});

bench({
  name: "frozenArray",
  runs: 10000,
  func(b): void {
    const values = [];
    for (let x = 0; x < 100; x++) {
      for (let y = 0; y < 100; y++) {
        values.push({ a: 1, b: 2 });
      }
    }

    const frozen = Object.freeze(values);

    b.start();
    for (const v of frozen) {
    }
    b.stop();
  },
});

runBenchmarks();