변수 추출

1 개요

extract variable

변수 추출

function getTotal() {
  return $order->quantity * $order->itemPrice -
    max(0, $order->quantity - 500) * $order->itemPrice * 0.05 +
    min($order->quantity * $order->itemPrice * 0.1, 100);
}

function getTotal() {
  $basePrice = $order->quantity * $order->itemPrice;
  $quantityDiscount = max(0, $order->quantity - 500) * $order->itemPrice * 0.05;
  $shipping = min($basePrice * 0.1, 100);
  return $basePrice - $quantityDiscount + $shipping;
}

2 같이 보기

• 상수 추출
• 메소드 추출
• 변수 인라인 처리(inline variable)

3 참고

• https://refactoring.guru/extract-variable
• https://refactoring.com/catalog/extractVariable.html
• https://www.jetbrains.com/help/idea/extract-variable.html#extract_functional_variable