JavaScript Object-Oriented Programming

//Definition of class

//Method 1: General definition method of class
    function player1(_name)
    {
         = _name;
         = function() {alert();};
    }

    var p1 = new player1('llinzzi1');
    ();

    
//Method 2: Prototype definition method
    var player2 = function() {}
     = {
        name:'',
        say:function(){
            alert();
        }
    }

    var p2 = new player2();
     = 'llinzzi2';
    ();

    
//Method 3: The above method is beautiful and convenient, but the construction function cannot have parameters, so modify the method
    var player3 = function() {
        (this, arguments);
    }
     = {
        init:function(_name){
             = _name;
        },
        say:function(){
            alert();
        }
    }

    var p3 = new player3('llinzzi3');
    ();

//Inheritance of Class

//Method 1
    var player4 = function(){
        (this, arguments);
    }
     = new player3;
     = function(){
        alert(());
    }

    var p4 = new player4('llinzzi4');
    ();

    
//Method 2 The above method cannot use the {} method, modify the method
     = function(destination, source) {
      for (var property in source)
        destination[property] = source[property];
      return destination;
    };

    var player5 = function(){
        (this, arguments);
    }
    ((,),{
        shout:function(){
            alert(());
        }

    });

    var p5 = new player5('llinzzi5');
    ();

    

    
//Then judge the code from the copy browser

    Browser = {
        IE:     !!( && !),
        Opera:  !!,
        WebKit: ('AppleWebKit/') > -1,
        Gecko:  ('Gecko') > -1 && ('KHTML') == -1,
        MobileSafari: !!(/Apple.*Mobile.*Safari/)
    }

    alert();