Run results for: Callback vs Promise2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 YaBrowser/24.1.0.0 Safari/537.36

Browser: Yandex Browser 24

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Callback

704K/s

Promise

555K/s

View exact numbers

Test name	Executions per second
✓ Callback	704,179 Ops/sec
Promise	555,426 Ops/sec

Script Preparation code:

function carlosWithPromise() {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      return resolve(5);
    });
  })
}

function carlosWithCallback(callback) {
  window.setTimeout(() => {
    callback(100);
  });
}

Tests:

Promise
carlosWithPromise() .then(parametro => { console.log('parametro: ', parametro); });
Callback
carlosWithCallback((param) => console.log('params::', param));