My pretty javascript functions.

My_Pretty_Scripts.js

/**
* Extends Object
*/
Object.prototype.extends = function(extension) {
  var hasOwnProperty  = Object.hasOwnProperty(),
      object          = Object.create(this);
  for(var property in extension){
    if(hasOwnProperty.call(extension, property) || typeof object[property] === "undefined")
      object[property] = extension[property];
  }
  return object;
};
 
/**
* Getter function for any object
*/
function get(object, property) {
  if(!Object.hasOwnProperty.call(object, property)){
    var prototype = Object.getPrototypeOf(object);
    if(prototype)
      return get(prototype, property);
  } else {
    return object[property];
  }
}
 
/**
* Multiple inheritance
* Cloning / Concatenative inheritance 
*/
Object.prototype.extend = function(){
  var hasOwnProperty  = Object.hasOwnProperty,
      object          = Object.create(this),
      length          = arguments.length,
      index           = length,
      extension;
 
  while(index){
    extension = arguments[length - (index--)];
    for(var property in extension){
      if(hasOwnProperty.call(extension, property) || typeof object[property] === "undefined")
        object[property] = extension[property];
    }
  }
  return object;
};
 
/**
 * Simple ajax implementation
 */
var xhrObject = new XMLHttpRequest();
xhrObject.onreadystatechange = function(){
  if(xhrObject.readyState === 4) {
    if(xhrObject.status === 200 || xhrObject.status === 304){
      console.log(xhrObject.responseText);
    }
  }
};
 
xhrObject.open(
  "GET",
  "http://samarpanda.com/sample/",
  true
);
xhrObject.send();

ValueObject = function(value) {
  this.value = value;
}

$.extend(ValueObject.prototype, {
  get: function() {
    return this.value;
  }
});