SyntaxError：意外的令牌else（codecademy.com）

Question

我有一些问题是JS的新程序员。

它给了我一个错误：SyntaxError：意外的令牌

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以下是代码：

// Write your function below. 
// Don't forget to call your function!
var sleepCheck = function(numHours) {
    if (numHours >= 8) console.log("You are getting plenty of sleep! Maybe even too much!");
} else {
    return "Get some more shut eye";
};
sleepcheck(10);
sleepcheck(5);
sleepcheck(8);

Answer 1

您错过了{

// Write your function below. 
// Don't forget to call your function!
var sleepCheck = function(numHours) {
if (numHours >= 8) { console.log("You are getting plenty of sleep! Maybe even too much!");
} else {
    return "Get some more shut eye";
};
sleepcheck(10);
sleepcheck(5);
sleepcheck(8);

Answer 2

在您的函数定义后{和if (…)之后缺少}：

var sleepCheck = function(numHours) {
    if (numHours >= 8) {
        console.log("You are getting plenty of sleep! Maybe even too much!");
    }
    else {
        return "Get some more shut eye";
    }
};
sleepcheck(10);
sleepcheck(5);
sleepcheck(8);

此外，还有一些代码审查：

确保return和console.log一致。在一种情况下，您返回一个字符串，在另一种情况下，您记录一些东西。为两个案例做同样的事情。