javascript - 如何计算返回函数的长度？

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 Javascript 的新手。我展示的代码有很多语法错误，但我举了一个例子，以便您更直接地理解。希望您明白我的意思；)如果不明白，请询问。

Answer 1

你不需要 for 循环，

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!");
}

你是对的，你的代码中有很多错误