executeTimes.js

import assert from 'node:assert';

/**
 * Executes a provided function a specific number of times
 * @param {Function} fn A function to execute
 * @param {number} times How many times the function should be executed
 */
function executeTimes(fn, times) {
  if (times < 1 || typeof fn !== 'function') {
    return;
  }

  Array(times).fill(undefined).forEach(fn);
}

// Let's track `executeTimes`!

const tracker = new assert.CallTracker();

function sayHi() {
  console.log('Hi');
}

// sayHi is expected to be called 3 times
const trackedSayHi = tracker.calls(sayHi, 3);

// executeTimes should execute trackedSayHi 3 times
executeTimes(trackedSayHi, 3);

// if trackedSayHi wasn't executed 3 times this line will throw an error
tracker.verify();