Question

如何从javascript访问此数组中的裁剪数组？我可能有很多ids

[{"id":"1","crop":"[{\"class\":\"org.project.Crop\",\"id\":6,\"commonName\":\"Wheat\",\"description\":\"N/A\",\"diseases\":[],\"growing\":\"N/A\",\"harvest\":\"N/A\"}, {\"class\":\"org.project.Crop\",\"id\":5,\"commonName\":\"Sugarcane\",\"description\":\"N/A\",\"diseases\":[],\"growing\":\"N/A\",\"harvest\":\"N/A\"}]]

Answer 1

也许使用JSON.parse(a["crop"]);

另请查看this thread。

Answer 2

你可以这样做：

var x = [{"id":"1","crop":"[{\"class\":\"org.project.Crop\",\"id\":6,\"commonName\":\"Wheat\",\"description\":\"N/A\",\"diseases\":[],\"growing\":\"N/A\",\"harvest\":\"N/A\"}, {\"class\":\"org.project.Crop\",\"id\":5,\"commonName\":\"Sugarcane\",\"description\":\"N/A\",\"diseases\":[],\"growing\":\"N/A\",\"harvest\":\"N/A\"}]];

var crop = JSON.parse(x[0].crop);

Answer 3

您的语法错误，您最后遗漏了"和}

这里是更正后的代码：

var data = [{"id":"1","crop":"[{\"class\":\"org.project.Crop\",\"id\":6,\"commonName\":\"Wheat\",\"description\":\"N/A\",\"diseases\":[],\"growing\":\"N/A\",\"harvest\":\"N/A\"}, {\"class\":\"org.project.Crop\",\"id\":5,\"commonName\":\"Sugarcane\",\"description\":\"N/A\",\"diseases\":[],\"growing\":\"N/A\",\"harvest\":\"N/A\"}]"}];
var crop = JSON.parse(data[0].crop);
alert(crop);

在线版：http://jsfiddle.net/w38Ku/1/

你必须解析“crop”才能将它用作对象，因为你已将它存储为字符串，而不是json对象

Javascript在jsonarray中解析jsonarray

3 个答案: