hmm.js

const { performance } = require('perf_hooks')

let iterations = 250;
let sizes = [10, 100, 1000, 1000000];
let loopMethods = {
  'while': iterWhile,
  'for': iterFor,
  'forEach': iterForEach,
  'forOf': iterForOf
}

console.log('| # Elements | While | For | forEach() | For...of |');
console.log('| - | - | - | - | - |');

for (size of sizes) {
  let line = `| ${size} |`;

  for (const key in loopMethods) {
    const method = loopMethods[key];
    let total = 0

    for (let i = 0; i < iterations; i++) {
      let array = randomNumberArray(size);

      let start = performance.now();
      method(array);
      let end = performance.now();

      total += end - start;
    }

    line += ` ${(total / iterations).toPrecision(4)} |`;
  }

  console.log(line);
}

function iterWhile(array) {
  let i = 0;
  while (i < array.length) {
    i++;
  }
}

function iterFor(array) {
  for (let i = 0; i < array.length; i++) {

  }
}

function iterForEach(array) {
  array.forEach((element) => { });
}

function iterForOf(array) {
  for (const element of array) {

  }
}

function randomNumberArray(size) {
  let array = new Array(size);

  for (let i = 0; i < array.length; i++) {
    array[i] = Math.random();
  }

  return array;
}