Short note

short_note.js

// Create class

function Cart(){
    // constructur

    // protected variable
    var myProtected = 'secret';

    // protected method
    var protectedFunction = function() {

    };

    // method
    this.get = function() {
        protectedFunction();
        return myProtected;
    };

    this.set = function(newSecret) {
        myProtected = newSecret;
    };
}

var myCart = new Cart;
myCart.set('my new secret');
console.log(myCart.get());

/////////////

// self execute function

(function(msg){
    console.log(msg);
})('xxx');

/////////////

// .bind and .call

function My(msg) {
    console.log(this);
    console.log(msg);
}

var MyGotBinded = My.bind({name: 'John'}, 'xxx');

MyGotBinded();

My.call({name: 'JohnAA'}, 'xxxAAA');