JavaScript/保留字/else

Theelse關鍵字

Theelse關鍵字在 if 語句中建立了一個子句。它是可選的，僅在所有其他 if … else if 塊不執行時才執行。

示例

程式碼

  var result = 17;

  if (result%2 == 0) {
    console.log(result + " is even.");
  } else if (result > 20) {
    console.log(result + " is greater than 20.");
  } else {
    console.log(result + " is odd and not greater than 20.");
  }

返回以下

17 is odd and not greater than 20.

參見

• else