Debug Function call on objects

prodebug.js

var Person = function(location) {
  this.location = location;
};

Person.prototype.goto = function() {
  console.log('goto: ', this.location);
};
prodebug(Person);


function prodebug(obj) {
  var pro = obj.prototype, old;

  for(var i in pro) {
    if(typeof pro[i] === 'function') {
      pro[i] = proxy(pro[i], i);
    }
  }

  function proxy(func, name) {
    return function debug() {
      console.log('Function: ', name);
      console.log('+- args: ', arguments);
      return func.apply(this, arguments);
    }
  }
}

var alex = new Person('London');
alex.goto();

var max = new Person('Berlin');
max.goto();