Getting key/value pair from JSON object and getting variable name and value from JavaScript object.

 Hi, I had faced one issue like this. I have an JSON object but I don't know any key name but I need to get the all the key and corresponding value from JSON object using client side JavaScript. Suddenly I wondered whether it's possible or not, after that I had done lot of workaround and finally got this solution. See the below example.
  function getKeyValueFromJSON() {

    var jsonObj = {a:10,b:20,c:30,d:50};

    for(var key in jsonObj) {

      alert("Key: " + key + " value: " + jsonObj[key]);

    }

 }

 In this example I have created the one json array as string, and converted this string into JSON object using eval() function. Using for-each loop I got all the key value from jsonObj, and finally using that key I got the corresponding value.
 Finally I got the alert like this,

   Key: a value:10
   Key: b value:20
   Key: c value:30
   Key: d value:50

 During this workaround I got one more idea, using this same way I got all the variable name and corresponding value from JavaScript object. See the below example.
 This is my JavaScript class. Here I have declared a function for variable d.
   function testJavaScriptClass() {

    this.a = 10;

    this.b = 20;

    this.c = 30;

    this.d= function() {

               return "Test result from inside this function";

            };

 }

 Now I am going to create one object for this class and going to get the variable name and corresponding value from JavaScript object.

 function getKeyValueFromJSObject() {

    var testObj = new testJavaScriptClass();

    for(var key in testObj) {

      if(typeof testObj[key] != "function") {

            alert("Key: " + key + " value: " + testObj[key]);   

      }

      else {

            var value = testObj[key]();

            alert("Key: " + key + " value: " + value);

      }

    }

 }

 Here I have checked the key (variable) is whether a function or not. If it is function then, I executed the function and get the result.
 Finally I got the alert this.

  Key: a value:10
  Key: b value:20
  Key: c value:30
  Key: d value: "Test result from inside this function"

Hope this help...!