JavaScript開關函數

Question

我想讓這段代碼運行，但它給了我一個錯誤，說「意外的輸入結束」。你能幫忙嗎？提前致謝。

var getReview = function (movie) { 
switch (movie) { 
case "Toy Story 2": 
    return "Great story. Mean prospector."; 
    break; 
case "Finding Nemo" : 
    return "Cool animation, and funny turtles."; 
    break; 
case "The Lion King" : 
    return "Great songs."; 
    break; 
default : 
    return "I dont know!"; 
    break; 
}; 

Answer 1

這樣看來，你錯過了你的函數在大括號：

var getReview = function (movie) { 
    switch (movie) { 
    case "Toy Story 2": 
     return "Great story. Mean prospector."; 
     break; 
    case "Finding Nemo" : 
     return "Cool animation, and funny turtles."; 
     break; 
    case "The Lion King" : 
     return "Great songs."; 
     break; 
    default : 
     return "I dont know!"; 
     break; 
    }; 
}; // <-- here 

另外請注意，它是沒有意義有break在年底return或分號後一個switch塊。你可以將上面的內容減少爲：

var getReview = function (movie) { 
    switch (movie) { 
    case "Toy Story 2": 
     return "Great story. Mean prospector."; 
    case "Finding Nemo" : 
     return "Cool animation, and funny turtles."; 
    case "The Lion King" : 
     return "Great songs."; 
    default : 
     return "I dont know!"; 
    } 
};