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我有一个 jQuery.each 循环遍历具有三组数据的 JSON 对象，但由于某种原因，循环输出 13 个对象而不是 3 个，其中 10 个是空的。这是我的代码：

var teammates_info=[];
var teammate_json={"teammates":[{"id":"12","first_name":"Bob","last_name":"Johnson","user_img":"","status":"offline","new_messages":"0"},{"id":"9","first_name":"John","last_name":"Doe","user_img":"","status":"offline","new_messages":"0"},{"id":"10","first_name":"test","last_name":"test","user_img":"","status":"offline","new_messages":"0"}]};

jQuery.each(teammate_json.teammates,function(index,teammate){
    teammates_info[teammate.id]=[{"first_name":teammate.first_name,"last_name":teammate.last_name,"user_img":teammate.user_img,"status":teammate.status,"new_messages":teammate.new_messages}];
}); 

console.log(teammates_info.length); //outputs 13 not 3

如果我这样做了document.write(teammates_info);，,,,,,,,,,[object Object],[object Object],,[object Object]那么您可以看到正在创建的所有空数组元素。

我正在尝试输出一个对象数组，这样我可以稍后在我的代码中引用队友的数据teammates_info[12]["first_name"]，但我很难理解为什么要创建 13 个数组元素而不是 3 个。

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1 回答 1

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您应该使用非索引对象，而不是数组：

var teammates_info = {};

演示

于 2013-09-27T11:20:36.707 回答