繁体   English   中英

Json Object 从 javascript 数组中获取

[英]Json Object fetch from javascript array

我有这样的 Json object

{
   "  resultArr": [
                   {
                     "ID":"1",
                      "0":"1",
                      "APPROVAL LEVEL":"1",
                      "1":"1",
                      "WorkFlow Type Code":"1",
                      "2":"1",
                      "Employee Number":"825489602V",
                      "3":"825489602V",
                      "Employee Name":"Wajira Wanigasekara",
                      "4":"Wajira Wanigasekara"
                     }
                 ]
}

我正在尝试打印 resultArr 的键和值。

例如,我想像这样打印 ID=1 APPROVAL LEVEL=1..

我可以使用此代码获取 ID、APPROVAL LEVEL.. 的值

$.ajax({
                    type: "POST",
                    async:false,
                    url: "<?php echo url_for('workflow/getApprovalByModuleView') ?>",
                    data: { viewName: viewName },
                    dataType: "json",
                    success: function(data){

                        alert(data.resultArr[0][3]);
                    }
                });

但我也想打印这些名字......

这意味着我想要打印 data.resultArr 数组的 KEY 和 VALUE

我怎样才能做到这一点?

好吧,您使用 select 值的密钥。 我能想到的唯一方法是循环遍历它们:

$.each(data.resultArr, function(index, value) { 
  alert(index + ': ' + value); 
});

我很确定您作为成功参数获得的data变量不是您所期望的。

首先,弄清楚数据实际包含什么。 我建议安装Firebug而不是警告编写:

console.dir(data);

还要检查数据类型尝试:

console.log(typeof(data));

现在您知道了数据真正返回的格式,您可以继续处理它。

var json = {"resultArr":[{"ID":"1","0":"1","APPROVAL LEVEL":"1","1":"1","WorkFlow Type Code":"1","2":"1","Employee Number":"825489602V","3":"825489602V","Employee Name":"Wajira Wanigasekara","4":"Wajira Wanigasekara"}]};

for(var key in json.resultArr[0]) {
    console.log( key, json.resultArr[0][key] );
}

javascript:

var array = {"key" : "value", "anotherkey" : "anothervalue"};
for (key in array){
    document.write("For the Element " + "<b>"+array[key]+"</b>" 
  + " Key value is  " +"<b>"+key+"</b>"+"<br>");
}

这将从 javascript 中的数组中获取键和值。

您遇到的问题是我认为您正在访问两个不同的数组对象。

data.resultArr[0][3]data.resultArr[0]["3"]不同,后者与 data.resultArr[0]["Employee Number"] 不同. The first will give you the VALUE for . The first will give you the VALUE for批准级别the second will give the the SECOND employee number and the last will give you the value for

您可以使用以下代码:

var json = {"resultArr":[{"ID":"1","0":"1","APPROVAL LEVEL":"1","1":"1","WorkFlow Type Code":"1","2":"1","Employee Number":"825489602V","3":"825489602V","Employee Name":"Wajira Wanigasekara","4":"Wajira Wanigasekara"}]};

var data = json.resultArr[0];
for (var key in data){
    document.write(key+":" + data[key]);
}

也许这有帮助:


function getArrayKeyAndValue(array, index){
    var count = 0;
    for (key in array){
        if(++count == index)
            return [key, array[key]];
    }      
}

var array = {"key1" : "value1", "key2" : "value2", "key3" : "value3"};
document.write(getArrayKeyAndValue(array, 1));

Output 是:“key1,value1”;

暂无
暂无

声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM