Functional VS imperative

example.js

const { randomInt } = require('crypto');
const numbers = Array.from({ length: 100_000 }).map(() => randomInt(1, 1000));

console.time('functional');
const resultByFunctional = numbers
	.filter((n) => n % 2 === 0)
	.reduce((a, n) => a + n, 0);
console.timeEnd('functional');

console.time('for of');
let resultForOf = 0;
for (const n of numbers) {
  if (n % 2 === 0) {
    resultForOf += n;
  }
}
console.timeEnd('for of');

console.time('for');
let resultFor = 0;
for (let i = 0; i < numbers.length; i++) {
  if (numbers[i] % 2 === 0) {
    resultFor += numbers[i];
  }
}
console.timeEnd('for');