我如何解析此JSON数据

Question

我尝试了JSON.parse，但没有成功。请告诉我如何解析这些数据。

[
{
"value": { "top": 343,"left": 397,"width": 283,"height": 283} ,
"main": {"sm": 0.263,"sd": 5,"fs": 22,"gs": 15}

  }
]

我的目标是使用obj.x来访问对象：

obj = JSON.parse(data);
$( "#dialog_title_span" ).text(obj.value.top + obj.value.left);

编辑：Json更正。

Answer 1

This is not a jSON. It is just an array of objects. You can traverse through loop. Like data[0].value.top gives you 343.

JSON is

Data is in name/value pairs, Data is separated by commas, Curly braces hold objects,

like:-

var value = '{ "name":"John", "age":30, "city":"New York"}'

This is a JSON. you can parse it using JSON.parse

a = JSON.parse(value)

Then you can acces name like:-

a.name

For more refernce you can study here