javascript 从 json 子数组中获取数据
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Getting Data from a json sub array
提问by Pit Digger
I am looping through the following json. I get id and name fine, but when I do json.templates[i].dailyemails.lengthit always returns 0.
我正在遍历以下 json。我得到 id 和 name 很好，但是当我这样做时json.templates[i].dailyemails.length它总是返回 0。
Here is my json:
这是我的 json：
{
"templates":[
{
"id":"2c1d99d9b6b2fb417601d24c10c9b041a7d6f37b",
"dailyemails":[
"[email protected]",
"[email protected]"
],
"name":"Registration Report"
},
{
"id":"7d7cc642ca13cc4a998cad364dfe8e623fd95ae3",
"dailyemails":[
"[email protected]"
],
"name":"Live Report"
}
]
}
采纳答案by Darin Dimitrov
回答by Denys Séguret
If this is JSON, that is a string, you have to parse it and work with a javascript object :
如果这是 JSON，那是一个字符串，您必须解析它并使用 javascript 对象：
var obj = JSON.parse(json);
And then you may query obj.templates[i].dailyemails
然后你可以查询 obj.templates[i].dailyemails
回答by Shyju
$.each(data.templates,function(index,item){
alert(item.dailyemails.length)
});
Sample : http://jsfiddle.net/JbF29/2/
