Function generateRandomBirthday

data/names.js:30–38

* Generate a random birthday (age 19-25). * @returns {{ year: number, month: number, day: number }}

()

 * @returns {{ year: number, month: number, day: number }}
 */
function generateRandomBirthday() {
  const currentYear = new Date().getFullYear();
  const age = 19 + Math.floor(Math.random() * 7); // 19 to 25
  const year = currentYear - age;
  const month = 1 + Math.floor(Math.random() * 12); // 1 to 12
  const maxDay = new Date(year, month, 0).getDate(); // days in that month
  const day = 1 + Math.floor(Math.random() * maxDay);
  return { year, month, day };
}