تجميع معاملات الدالة بإستخدام Rest Parameters

function total(...numbers) {
  return numbers.reduce((sum, number) => sum + number, 0);
}
console.log(total(10, 20, 30));
console.log(total());

60
0

function describe(name, ...skills) {
  return `${name}: ${skills.join(" - ")}`;
}
console.log(describe("Osama", "HTML", "CSS"));

Osama: HTML - CSS