jQuery多层JSON

Question

晚上好， 我正在研究一个JSON，我必须解析它以获得我需要的东西。它看起来像这样：

{
    "0":{"ID":"282","WarrSalePrice":"1.00"}
    ,"1":{"ID":"283","WarrSalePrice":"2.00"}
    ,"2":{"ID":"284","WarrSalePrice":"3.00"}
    ,"3":{"ID":"285","WarrSalePrice":"4.00"}
    ,"Totals":{"RowCount":"4","WarrSalePrice":"10.00"}
}

我使用以下代码遍历上面的JSON。

jQuery.each(data, function(index, value){
    alert(value['WarrSalePrice']);    //This get the individual sales prices
});

问题是我需要获取RowCount和TotalSalesPrice。我在这里的逻辑并没有完成它。它告诉我，我的价值如果＆＃34;未定义＆＃34;为第5（总计行）。我还需要在调用jQuery.each之前读取RowCount值。因为如果RowCount == 0，则不需要执行jQuery.each。任何人都可以指出我正确的方向。

一切顺利， 乔治

Answer 1

https://jsfiddle.net/mvpb1k1r/

检查它是否未定义。

var data = {
    "0":{"ID":"282","WarrSalePrice":"1.00"}
    ,"1":{"ID":"283","WarrSalePrice":"2.00"}
    ,"2":{"ID":"284","WarrSalePrice":"3.00"}
    ,"3":{"ID":"285","WarrSalePrice":"4.00"}
    ,"Totals":{"RowCount":"4","WarrSalePrice":"10.00"}
}

jQuery.each(data, function(index, value){
    if(typeof value['WarrSalePrice'] != "undefined") {
    console.log("WarrSalePrice: " + value['WarrSalePrice']);    //This get the individual sales prices
    }

  if(typeof value['RowCount'] != "undefined") {
    console.log("RowCount: " + value['RowCount']);    //This get the individual sales prices
    }
});