Created
August 27, 2010 19:11
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console.log(blanky); // `object definition` | |
console.log(typeof blanky); // object | |
console.log(blanky.__proto__); // object | |
console.log(typeof blanky.__proto__); // object | |
console.log(blanky.constructor); // SafetyBlanket() | |
console.log(typeof blanky.constructor); // function | |
console.log(blanky.constructor.prototype); // object{} | |
console.log(typeof blanky.constructor.prototype); // object | |
// Notice it always comes back to an object | |
// ------------------------ | |
console.log(blanky.isObject); // true | |
console.log(typeof blanky.isObject); // boolean | |
console.log(blanky.isObject.__proto__); // object | |
console.log(typeof blanky.isObject.__proto__); // object | |
console.log(blanky.isObject.constructor); // Boolean() | |
console.log(typeof blanky.isObject.constructor); // function | |
console.log(blanky.isObject.constructor.prototype); // false {} | |
console.log(typeof blanky.isObject.constructor.prototype); // object | |
// Again, it always comes back to an object |
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// Posted at: http://www.quora.com/How-do-you-implement-object-orientation-in-JavaScript | |
function SafetyBlanket() { | |
this.isObject = true; | |
} | |
// Declare and assign a new instance | |
var blanky = new SafetyBlanket(); | |
console.log(blanky); // `object definition` |
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function SafetyBlanket(material) { | |
this.isObject = true; | |
this.madeOf = material; | |
} | |
// Extend the prototype with a new method | |
SafetyBlanket.prototype.tuckIn = function() { | |
return this.madeOf; | |
} | |
// Declare and assign a new instance | |
var myBlanky = new SafetyBlanket('silk'), | |
yourBlanky = new SafetyBlanket('fiberglass'); | |
console.log(myBlanky); | |
console.log(yourBlanky); | |
console.log(myBlanky.tuckIn()); | |
console.log(yourBlanky.tuckIn()); | |
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function Developer(lang) { | |
this.isObject = true; | |
this.prefs = { | |
lang: lang | |
}; | |
} | |
Developer.prototype.getPrefs = function () { | |
return this.prefs; | |
}; | |
function FrontEnd() {} | |
function BackEnd() {} | |
FrontEnd.prototype = new Developer('javascript'); | |
BackEnd.prototype = new Developer('python'); | |
// Reassign the constructor to reflect itself | |
FrontEnd.prototype.constructor = FrontEnd; | |
BackEnd.prototype.constructor = BackEnd; | |
// Extend the prototype with a new method | |
FrontEnd.prototype.getDOMWindow = function () { | |
return window; | |
} | |
// Extend the prototype with a new method | |
BackEnd.prototype.getInterpreter = function () { | |
return this; | |
} | |
// Inspect them now, they have the characteristics of | |
// the Developer object as well as their own methods | |
console.log(FrontEnd.prototype); | |
console.log(BackEnd.prototype); | |
// Declare new instances of our two objects | |
var frontEndDev = new FrontEnd(), | |
backEndDev = new BackEnd(); | |
// To be sure, run their methods | |
console.log(frontEndDev.getDOMWindow()); | |
console.log(backEndDev.getInterpreter()); | |
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