JSON.stringify function

Why exactly do you want to stringify the object? JSON doesn't understand functions (and it's not supposed to). If you want to pass around objects why not do it one of the following ways?

var x = {name: "FirstName", age: "19", load: function () {alert('hai')}, uniq: 0.5233059714082628};

function y(obj) {
    obj.load();
}

// works
y({name: "FirstName", age: "19", load: function () {alert('hai')}, uniq: 0.5233059714082628});

// "safer"
y(({name: "FirstName", age: "19", load: function () {alert('hai')}, uniq: 0.5233059714082628}));

// how it's supposed to be done
y(x);

There is a way to serialize a function in JS, but you'll have to eval it on the other side and it will also lose access to it's original scope. A way to do it would be:

JSON.stringify(objWithFunction, function(key, val) {
  if (typeof val === 'function') {
    return val + ''; // implicitly `toString` it
  }
  return val;
});

There are some legitimate uses for what you're asking despite what people are posting here, however, it all depends on what you're going to be using this for. There may be a better way of going about whatever it is you're trying to do.

Not something I would ever do but it is worth mentioning that there are ways to stringify function (i.e. it is not impossible).

Take the following:

var func = function(){console.log('logged')};
var strFunc = func.toString();

//then
var parsedFunc = eval('('+strFunc+')');
parsedFunc();

//or simply
eval('('+strFunc+')()');
//or
eval('('+strFunc+')')();
//or
eval('var anotherFunc='+strFunc);
anotherFunc()

The above with an overridden toJSON() can achieve a shallow stringified function;

DISCLAIMER: look into this and other articles and make your own decision before using eval()

In fact, It's very easy to serealize / parse javascript object with methods.

Take a look at JSONfn plugin.

http://www.eslinstructor.net/jsonfn/

Hope this helps.

-Vadim