比较jQuery中的JSON值 [英] Comparing JSON value in Jquery

问题描述

我想检查以下JSON中是否存在"T1000"作为批准密钥".如果存在，那么我要显示相应的批准值".

I want to check if "T1000" exists as an approval "key" in the following JSON. If it exists, then I want to display the corresponding approval "value".

{"approvals": 
    [
         {"approval":
            {
               "id":"0121920",
               "key":"T100",
               "value":"Ben Tsu"
            }
         },
         {"approval":
            {
               "id":"",
               "key":"T1000",
               "value":"Amy Dong"
            }
         }
    ]
}

我正在将JSON作为Ajax响应.我试图遍历所有属性，并将其与作为参数传入的值匹配.

I'm getting JSON as an Ajax response. I'm trying to loop through all properties and match it to the value passed in as the parameter.

这是我的代码，但它只吐出对象Object，对象Object.因此，如果我有5个属性，则此代码会将对象Object吐出5次.

Here's my code but it only spits out object Object, object Object. So, if I have 5 properties, this code spits out object Object 5 times.

我正在将inputFieldDefaultValue作为参数传递给插件，其值为T1000.因此，o.inputFieldDefaultValue.

I'm passing inputFieldDefaultValue as a parameter to the plugin with the value being T1000. Hence, o.inputFieldDefaultValue.

$.each(response.approvals, function(index, approvals){ 
    if(approvals.approval.key == o.inputFieldDefaultValue){ 
         approvals.approval.value; 
    } 
}); 

如果我这样做

$.each(response.approvals, function(index, approvals){ 
    if(approvals.approval.key == o.inputFieldDefaultValue){ 
         alert(approvals.approval.value); 
    } 
});

会警告相应的值(Amy Dong)，但仍会写入对象Object(与JSON响应中的属性一样多).

it alerts the corresponding value (Amy Dong) but it still writes object Object (as many times as the properties in the JSON response).

推荐答案

您可以使用以下遍历对象的代码来访问JSON对象的值:

You may access the values of the JSON object by using the following code that traverses the objects:

var approvals = obj.approvals;

for(var i = 0; i < approvals.length; i++)
{
  if(approvals[i].approval.key = 'T1000')
  {
    // Display approvals[i].approval.value
  }
}

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