Iterator benchmark

isobench.js

import { IsoBench } from 'iso-bench';

const range = max => ({
  *[Symbol.iterator]() {
    for (let i = 0; i < max; i++) yield i;
  }
});

globalThis.i = 0;

const length = 100000;

const arr = Array.from({ length }, (_, i) => i);

await new IsoBench('for .. of')
  .add(
    'range',
    (iterableIterator) => {
      for (const value of iterableIterator) {
        globalThis.i = i ^ value;
      }
    },
    () => range(length),
  )
  .add(
    'array',
    (iterableIterator) => {
      for (const value of iterableIterator) {
        globalThis.i = i ^ value;
      }
      return i;
    },
    () => arr,
  )
  .consoleLog()
  .run();