how do I access the crop array in this array from javascript? I may have many 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\"}]]
your syntax is wrong, you are missing " and } at the end
here is corrected code:
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);
online version: http://jsfiddle.net/w38Ku/1/
you have to parse "crop" before you can use it as an object, because you have stored it as a string, not json object
Maybe use JSON.parse(a["crop"]);
Also have a look at this thread.
You can do:
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);
