JSON元素选择

本文介绍了JSON元素选择的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我的JSON对象如下:

my JSON objects look like this:

[{"aid":"1","atitle":"Ameya R. Kadam"},{"aid":"2","atitle":"Amritpal Singh"},{"aid":"3","atitle":"Anwar Syed"},{"aid":"4","atitle":"Aratrika"},{"aid":"5","atitle":"Bharti Nagpal"}]

如您所见，名称通过其相关的辅助名称来区分.现在假设我要显示堆叠在一起的名称:4.我应该为此写什么js?

As you can see the names are differentiated through their associated aid's. Now suppose I want to display the name stacked with aid: 4. what js should i write for that?

推荐答案

您可以遍历数组的元素，对每个元素进行测试(如果辅助为4的话):

You could loop over the elements of your array, testing, for each one, if its aid is 4 :

var list = [{"aid":"1","atitle":"Ameya R. Kadam"},
        {"aid":"2","atitle":"Amritpal Singh"},
        {"aid":"3","atitle":"Anwar Syed"},
        {"aid":"4","atitle":"Aratrika"},
        {"aid":"5","atitle":"Bharti Nagpal"}
    ];
var length = list.length;
var i;
for (i=0 ; i<length ; i++) {
    if (list[i].aid == 4) {
        alert(list[i].atitle);
        break; // Once the element is found, no need to keep looping
    }
}

将使用"Aratrika"发出警报

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