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How use super like in OOP with a Prototypal Language
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| // How use super like in OOP with a Prototypal Language : | |
| !function(){ | |
| 'use strict'; | |
| console.log("Starting"); | |
| var Feline = function(name, race) { | |
| if ( !(this instanceof Feline) ) return; | |
| this.name = name; | |
| this.race = race || "Feline" | |
| console.log("Feline ADN new say : A new " + this.race + " is born : " + this.name); | |
| }; | |
| Feline.prototype.hello = function(){ | |
| console.log("Feline ADN hello say : " + this.myName()); | |
| }; | |
| Feline.prototype.myName = function(){ | |
| return "My name is " + this.name; | |
| } | |
| console.log(Feline); | |
| console.log('--- Here: leo = new Feline("Léo");'); | |
| var leo = new Feline("Léo"); | |
| console.log(leo); | |
| console.log('--- Here: leo.hello();'); | |
| leo.hello(); | |
| var Cat = function(_super) { | |
| return function(name, owner) { | |
| if ( !(this instanceof Cat) ) return; | |
| _super.apply(this, [name, "Cat"]); | |
| this.owner = owner; | |
| }; | |
| }(Feline); | |
| Cat.prototype = Object.create(Feline.prototype); | |
| Cat.prototype.constructor = Cat; | |
| Cat.prototype.hello = function(_super){ | |
| return function(){ | |
| _super.apply(this); | |
| console.log("Cat ADN hello say: And my owner is " + this.owner); | |
| console.log("Cat ADN hello say: ... Yes, I inherit also of this capacity to say " + this.myName()); // Method exists only in Feline prototype | |
| }; | |
| }(Cat.prototype.hello); // Stick to the initial hello method through the prototype chain | |
| console.log(Cat); | |
| console.log('--- Here: kitty = new Cat("Kitty", "John");'); | |
| var kitty = new Cat("Kitty", "John"); | |
| console.log(kitty); | |
| console.log('--- Here: kitty.hello();'); | |
| kitty.hello(); | |
| console.log("End."); | |
| }(); | |
| /* | |
| Starting | |
| function Feline() | |
| --- Here: leo = new Feline("Léo"); | |
| Feline ADN new say : A new Feline is born : Léo | |
| Object { name: "Léo", race: "Feline" } | |
| --- Here: leo.hello(); | |
| Feline ADN hello say : My name is Léo | |
| function Cat() | |
| --- Here: kitty = new Cat("Kitty", "John"); | |
| Feline ADN new say : A new Cat is born : Kitty | |
| Object { name: "Kitty", race: "Cat", owner: "John" } | |
| --- Here: kitty.hello(); | |
| Feline ADN hello say : My name is Kitty | |
| Cat ADN hello say: And my owner is John | |
| Cat ADN hello say: ... Yes, I inherit also of this capacity to say My name is Kitty | |
| End. | |
| */ |
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