javascript - 按键值重新排序 Json 数组

Question

我有一个联系人列表，它以这种非常长的形式返回给我。它根据输入顺序返回(第一组括号外的字段，缩进)。我遇到的问题是我希望它按显示名称的字母顺序排列。因为它在主数组中它自己的数组中，所以我无法通过它重新排序完整数组。任何人都可以解决这个问题吗？谢谢。哦，它必须在 JS 中完成。

{
"0":
{"id":1,"rawId":null,"displayName":"Person 1","name":null,"nickname":null,"phoneNumbers":[{"type":"mobile","value":"phonenumb53534r","id":0,"pref":false}],"emails":null,"addresses":null,"ims":null,"organizations":null,"birthday":null,"note":null,"photos":null,"categories":null,"urls":null},
"1":
{"id":2,"rawId":null,"displayName":"Person 2","name":null,"nickname":null,"phoneNumbers":[{"type":"mobile","value":"phonenumber535345","id":0,"pref":false}],"emails":null,"addresses":null,"ims":null,"organizations":null,"birthday":null,"note":null,"photos":null,"categories":null,"urls":null},
"2":
{"id":3,"rawId":null,"displayName":"Person 3","name":null,"nickname":null,"phoneNumbers":[{"type":"mobile","value":"phonenumber47474","id":0,"pref":false}],"emails":null,"addresses":null,"ims":null,"organizations":null,"birthday":null,"note":null,"photos":null,"categories":null,"urls":null}, goes on for a couple hundred rows 

Answer 1

JavaScript 中的对象本质上不是有序的。如果你有一个数组，你可以使用它。否则，您必须自己将对象的外部部分转换为数组:

var arrayOfObj = [];

for (item in obj) {
    if (obj.hasOwnProperty(item)) {
        arrayOfObj.push(obj[item]);
    }
}

如果你能在 之前做到这一点，你甚至可以得到 JSON，那就更好了。一旦你有了它，你就可以使用普通数组 .sort 方法

arrayOfObj.sort(function (a, b) {
    if (a.displayName < b.displayName) {
        return -1;
    }
    else if (a.displayName > b.displayName) {
        return 1;
    }
    return 0;
});

http://jsfiddle.net/ZcM7W/