javascript - JSON stringify objects excluding methods -

I am working on a Firefox extension and I am trying to strip a JSON object.

I am using it, but I am getting this error:

Javascript logic "NS_ERROR_XPC_BAD_CONVERT_JS" could not be changed

I really care only about the first level or the two or the properties inside the object, and I do not care about the ways / functions if I do not have to do all this, then what to do to disturb an object An easy way?

Here's a bit of code I'm using:

  var s = JSONstring ('ABC'); Try Firebug.Console.log (gContextMenu); S = JSON.stringify (gContextMenu); Firebug.Console.log (s); } Hold (e) {Firebug.Console.log ('error'); Firebug.Console.log (E); } Var s = JSONstring.make ('abc'); Firebug.Console.log (s); Firebug.Console.log (gContextMenu);   
 The console window has this error:  
  
 It is that I can copy from the firebug console window:  
  
 Here is a screenshot of the object:  
   
 
 
 You can define a custom function on your object which is called  toJSON ()  which gives only the element of the object that you want to a certain extent counter-intuitive, your  Return a JSON string  do not  toJSON  function It should - it should be used only as input represents an object that  JSON.stringify .  
 For example:  
  // You want to have an object with some attributes and some you do not do var o = {a: "value1", b : "Value2", doCalc: function () {return.a + "" + this.b}}; // to define a custom JSON () method o.toJSON = function () {return {a: this.a, calc: this.doCalc ()}}; JSON.stringify (o); In your case, you should be able to define this method for  gContextMenu, "//" {"a": "value", "calc": "value1 value2"} '   JSON.stringify  , it clearly defines what you want and do not want to do, but I do not think it There is a better way.  
  Edit:  If you have all non-impact values, you can try to do something like this:  
  o.toJSON = function () {Var attrs = {}; For (var attr) {if (this typeof [attr]! = "Function") {attrs [attr] = string (this [attr]); // string to string}} return attrs; };   
 You will probably end up with some attributes set on  "[object object]" , but if you want everything to be inspected, then it may be possible One is not the issue. You can also check for this  == "string" type, if you wanted to get only those types of properties then type this [atri] == "number" .