Design Patterns : Mixin Pattern

base.js

/**
 * @fileoverview The file that is to be included a view and start working
 * @author hwclass
 */
 
/** 
 * base.js
 * This file is used to initialize some extended object references
 */
 
'use strict';
 
//-----------------------------------------------------------
// Public
//-----------------------------------------------------------

/** @type {Object} */
var person = new Person('Tacchinardi', 33);

person.getName(); // logs Tacchinardi 

person.getAge(); // logs 33

init.js

/**
 * @fileoverview The file that some object extending processes
 * @author hwclass
 */
 
/** 
 * init.js
 * This file is used to extend the functionalities
 * of the object references with additionals
 */
 
'use strict';
 
//-----------------------------------------------------------
// Public
//-----------------------------------------------------------

extend(Person.prototype, mixin.person);

mixin.js

/**
 * @fileoverview The file that contains some mixins
 * @author hwclass
 */
 
/** 
 * mixin.js
 * This file contains an object literal
 * that contains some functionalities for some objects
 */
 
'use strict';
 
//-----------------------------------------------------------
// Public
//-----------------------------------------------------------

/**
 * mixin object
 * @noparam
 */
var mixin = {
  person : {
    getName : function () {
      return this.name
    },
    getAge : function () {
      return this.age;
    }
  }
}

Person.js

/**
 * @fileoverview The sample js file for Person object
 * @author hwclass
 */
 
/** 
 * Person.js
 * This file contains an object to be a reference for new instances 
 */
 
'use strict';
 
//-----------------------------------------------------------
// Public
//-----------------------------------------------------------

/**
 * Person object
 * @param {String} name
 * @param {Function} context
 */
var Person = function (name, age) {
  this.name = name;
  this.age = age;
}

utils.js

/**
 * @fileoverview The file that contains some utilities
 * @author hwclass
 */
 
/** 
 * utils.js
 * This file contains a method that extend a reference object
 * with some additional functionalities
 */
 
'use strict';
 
//-----------------------------------------------------------
// Public
//-----------------------------------------------------------

/**
 * extend method
 * @param {Object} destination
 * @param {Object} source
 */
function extend(destination, source) {
  for (var k in source) {
    if (source.hasOwnProperty(k)) {
      destination[k] = source[k];
    }
  }
  return destination;
}