JSON.parse()

字符串转JSON对象
JSON.parse(jsonString): 在一个字符串中解析出JSON对象（js方法）

var str = '[{"href":"1111","text":"test","orgId":123,"dataType":"curry","activeClass":"haha"}]';
//或者
var str = {href:"1111",text:"test",orgId:123,dataType:"curry",activeClass:"haha"};

JSON.parse(str);

JSON.stringify()

JSON对象转字符串
JSON.stringify(obj) : 将一个JSON对象转换成字符串

var obj = [{"href":"1111","text":"test","orgId":123,"dataType":"curry","activeClass":"haha"}];
 
JSON.stringify(obj);

//输出
"[{"href":"1111","text":"test","orgId":123,"dataType":"curry","activeClass":"haha"}]"