使用javascript从JSON获取特定值 [英] Getting specific value from JSON using javascript
问题描述
我正在使用ajax从服务器返回一小组数据,返回的JSON数据格式如下:
I am using ajax to get a small set of data back from the server which returns JSON data with the following format:
{
"data": [
{
"id": "1",
"value": "One"
},
{
"id": "2",
"value": "Two"
},
{
"id": "3",
"value": "Three"
}
]
}
在客户端,将其分配给名为 response
的变量。我使用 response.data
来获取内容。
On the client side, this is assigned to a variable named response
. I use response.data
to get the contents.
问题是,是否有更简单的方法来获取没有循环的价值?
我有点像这样的回复[id == 2] .value
这应该给我两个。
The question is, is there an easier way to get the value without doing a loop?
I'm kinda looking for something like this response[id==2].value
which should give me "Two".
如果不可能,我会对任何建议持开放态度。
I'm open for any suggestions if this is not possible.
推荐答案
你可以拿一个功能方法并使用 Array.filter 方法:
You could take a functional approach and use the Array.filter method:
var matchingResults = JSON['data'].filter(function(x){ return x.id == 2; });
// procede to use matching elements...
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