Javascript 无法获取要在警报窗口中显示的数据库数组？

这是一个学校项目！我学习JavaScript才几周——我正在尽全力学习，但确实需要帮助，所以我再次向那些精通JavaScript的人寻求帮助

没有出现代码错误，并且不确定为什么这不会显示在此项目的“管理”页面上的警报窗口中。任何想法或想法都将不胜感激！谢谢

这是JSFIDLE-

代码如下：

// Chapters 7 & 8 - store.js

//此脚本创建一个“假”数据库，用于存储音乐商店收藏中的可用CD

// Function called when page is loaded.
// Function creates a new object.
function process() {
'use strict';


// Create a new array:
var cd = new Array ([
    {"cd":0, "item":"001", "title": "Total Life Forever", "artist": "FOALS",         "price": "$14.99", "released": "March, 2009", "tracks": "Track Listing"     {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"}
    {"cd":1, "item":"002", "title": "Bein Love", "artist": "Locksley", "price": "$14.99", "released": "April, 2012", "tracks": "Track Listing" {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"}
    {"cd":2, "item":"003", "title": "Privileged", "artist": "Nick Moss", "price": "$14.99", "released": "June, 2011", "tracks": "Track Listing" {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"}
    {"cd":3, "item":"004", "title": "Asondeguerra", "artist": "Juan Louis Guerra", "price": "$14.99", "released": "September, 2013", "tracks": "Track Listing" {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"}
    {"cd":4, "item":"017", "title": "Way Out Here", "artist": "Josh Thompson", "price": "$14.99", "released": "August, 2010", "tracks": "Track Listing" {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"}
    {"cd":5, "item":"018", "title": "Tremolo", "artist": "The Pines", "price": "$14.99", "released": "January, 2007", "tracks": "Track Listing" {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"}
    {"cd":6, "item":"019", "title": "Live From Freedom Hall", "artist": "Lynyrd Skynyrd", "price": "$14.99", "released": "June, 2010", "tracks": "Track Listing" {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"}
    {"cd":7, "item":"020", "title": "Achin' & Shakin'", "artist": "Laura Bell Bundy", "price": "$14.99", "released": "July, 2013", "tracks": "Track Listing" {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"}
    {"cd":8, "item":"021", "title": "Here I Am", "artist": "Marvin Sapp", "price": "$14.99", "released": "November, 2011", "tracks": "Track Listing" {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"}
    {"cd":9, "item":"022", "title": "Just James", "artist": "J Moss", "price": "$14.99", "released": "March, 2011", "tracks": "Track Listing" {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"}
    {"cd":10, "item":"013", "title": "Tom Petty - Live", "artist": "Tom Petty", "price": "$14.99", "released": "May, 2010", "tracks": "Track Listing" {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"}
]); 


// Function to call titles in an alert box
alert('CD titles available are' + cd({title:"0,1,2,3,4,5,6,7,8,9,10"}));
// End of alert.    


} 
// End of process() function.

// Initial setup:
function init() {
'use strict';
document.getElementById('theForm').onsubmit = process;

} // End of init() function.
window.onload = init;

而不是

var cd = new Array ([
    {"cd":0, "item":"001", "title": "Total Life Forever", "artist": "FOALS",             "price": "$14.99", "released": "March, 2009", "tracks": "Track Listing"     {1,2,3,4,5,6,7,8,9,10,11,12}, "quantity": "1"},
    // ...
]);

只要写

var cd = [
    {...},
    {...},
];

而

cd（{…}）

将不起作用，因为cd是数组而不是函数

---

你将（不得不）在学校学到很多东西；-）

您有几个错误

如果将数组构造函数用作

var cd = new Array ([...]);

您实际定义了对象数组的数组。你必须使用

var cd = new Array(...)

或者只是

var cd = [...];

每个数组项（在您的案例中是对象）都需要在其后面加上“，”

var cd = new Array(1, 2, 3)

就你而言：

var cd = new Array({...}, {...}, {...});

有一个对象属性

"tracks": "Track Listing"     {1,2,3,4,5,6,7,8,9,10,11,12},

在这里，您把“：”字符串和对象{1，2…}放在后面。你想定义什么

"tracks": {1,2,3,4,5,6,7,8,9,10,11,12},

还是别的什么

您可以使用例如for循环来获取每个标题

for (var i = 0; i < cd.length; i++)
    alert("CD Title: " + cd[i].title);

for（变量i=0；i

进行了更改，但仍然没有打开警报窗口，谢谢。是的，我知道我有很多东西要学，但不是每个人在开始的时候都学到了吗？？最重要的是我真诚的尝试…我不想侮辱你。你学习JavaScript很好，我们愿意帮助你，因为你很努力。玩得开心，你会掌握它的！我没有被你的话侮辱，你没有什么可道歉的！这个网站上还有其他人非常傲慢、傲慢和粗鲁——你不是他们中的一员。谢谢你…谢谢你提供的信息。我正在尝试你指出的更正，但仍然无法使其正常工作。我很难将我在视频中看到的和阅读到的有意义的东西应用到实践中，直到我尝试自己去写！啊…从小处做起。一个数组项包含一个对象和一个属性，并使其正常工作。然后扩展。例如

varcd=newarray（{“cd”：0，“item”：“001”}）并显示cd或项目。谢谢，Anto。让它在HTML中工作，仍然试图让它与外部文件中的JS代码一起工作，但似乎无法理解这一点。我感谢你的帮助。。。