Extending prototype function without overwriting it

Question

I need to fix a bug in the save function of the Parse.Object library. However, when I try to call the original save function in my overwritten prototype, it loops recursively until the stack overflows!

Parse.Object.prototype.save = function (arg1, arg2, arg3) {
    fixIncludedParseObjects(this);

    Parse.Object.prototype.save.call(this, arg1, arg2, arg3); // endless loop
};

How can I change the endless loop line to call the original function made by parse?

Thanks!

Answer 1

Similar to accepted answer but maybe a little easier to understand

var originalSaveFn = Parse.Object.prototype.save;
Parse.Object.prototype.save = function(arg1, arg2, arg3) {
    fixIncludedParseObjects(this);
    originalSaveFn.call(this, arg1, arg2, arg3);
};

Answer 2

Parse.Object.prototype.save = function (save) {
    return function () {
        fixIncludedParseObjects(this);
        //Remember to return and .apply arguments when proxying
        return save.apply(this, arguments);
    };
}(Parse.Object.prototype.save);

Answer 3

Try this:

(function(save) {
  Parse.Object.prototype.save = function (arg1, arg2, arg3) {
    fixIncludedParseObjects(this);
    save.call(this, arg1, arg2, arg3);
  };
}(Parse.Object.prototype.save));