ตัวอย่างรวม: คำนวณยอดสุทธิ

function netPrice(price, discount) {
  return price - discount;
}

const pay = netPrice(200, 35);
console.log("ต้องจ่าย " + pay);

const netArrow = (price, discount) => price - discount;
console.log(netArrow(200, 35));