如何計算返回函數的長度？

Question

for (i=0; i <2; i++) { 
function drinks () { 
    prompt("Please enter how many drinks you had drank.");
    var dNum = return "You had drank" + " " + drinks + "!";
}
}
if (dNum.length === 2) {
console.log("You are the lord of drinks!");
}

我只是Java語言的新手。 我顯示的代碼有很多語法錯誤，但是我在舉一個例子讓您更直接地理解。 希望你知道我的意思；）如果沒有，請詢​​問。

Answer 1

您不需要for循環，

function drinks () { 
   var dNum = prompt("Please enter how many drinks you had drank.");
   return dNum;
}

if (drinks() == 2) {
   alert("You are the lord of drinks!");
}

沒錯，您的代碼中有很多錯誤