Angry Birds of JavaScript Development: Red Bird

empty-iife.js

// JavaScript can parse this just fine now, yay!
(function() {
    // All memory is contained within this scope
}()); // <-- Immediately Invoked

explicit-global.js

var type = "Red",
    attack = function() {
        typeOfBird = type + " Bird";

        window.message = typeOfBird + " Attacks!";

        return typeOfBird + " Bird Attacks!";
    };

console.log( window.type );       // I'm a global variable
console.log( window.attack() );     // I'm a global function
console.log( window.typeOfBird ); // I'm a global variable too :(
console.log( window.message );    // I'm a global variable too :|

global-variables.js

var type = "Red",
    attack = function() {
        console.log( type + " Bird Attacks!" );
    };

console.log( window.type );   // I'm a global variable
console.log( window.attack ); // I'm a global function

not-declaring-variable.js

var type = "Red",
    attack = function() {
        typeOfBird = type + " Bird";

        return typeOfBird + " Bird Attacks!";
    };

console.log( window.type );       // I'm a global variable
console.log( window.attack() );     // I'm a global function
console.log( window.typeOfBird ); // I'm a global variable too :(

object-literal.js

// Gather type & attack and make properties off higher level object
var bird = {
    type: "Red",
    attack: function() {
        console.log( this.type + " Bird Attacks!" );
    }
};

console.log( window.bird );          // Only 1 global object!
console.log( window.bird.type );     // Red
console.log( window.bird.attack() ); // Red Bird Attacks! 

parameter-iife.js

(function( bird ) {
    var power = "IIFE"; // This is private
    
    bird.type = "Red";
    bird.attack = function() {
        console.log( bird.type + " Bird Attacks with an " + power + "!" );
    };
}( window.bird = window.bird || {} ));

console.log( window.bird );          // Only 1 global object!
console.log( window.bird.type );     // Public property
console.log( window.bird.attack() ); // Public method accessing private var
console.log( window.bird.power );    // Private variable, can't access 

revealing-module.js

// Revealing Module Pattern
var bird = (function() {
    var type = "Red",
        power = "IIFE", // This is private
        attack = function() {
            console.log( type + " Bird Attacks with an " + power +  "!" );
        };
    
    return { // Only the items returned are public
        type: type,
        attack: attack
    };
}());

console.log( window.bird );          // Only 1 global object!
console.log( window.bird.type );     // Public property
console.log( window.bird.attack() ); // Public method accessing private var
console.log( window.bird.power );    // Private variable, can't access 

unwrapped-iife.js

// Error: JavaScript can't parse this correctly
function() {
    // All memory is contained within this scope
}(); // <-- Immediately Invoked