Solucio Yahoo rellotge

SOLUCIÓ YAHOO

function Yahoo(){

	var numeros = "";


	this.seguent = function(numeros){

		switch(numeros){
		
			case "cero":
				return "un";								
			break;

			case "un":
				return "dos";								
			break;

			case "dos":
				return "tres";
			break;

			case "tres":
				return "quatre";
			break;

			case "quatre":
				return "molts";
			break;

			case "molts":
				return "molts";
			break;

			case "desconegut":
				return "desconegut";
			break;

			default:

				return "desconegut";


		}//cerrar switch
		
	}; //cerrar this.seguent


	this.suma = function(){

		var numero = "";
		var x = "";

		if(arguments.length==0){
			return "desconegut";
		}
		else if(arguments.length==1){
			return arguments[0];
		}
		else{
		
			numero = arguments[0];
			x = arguments[1];

			switch(numero){
			
				case "cero":
					return this.suma(x);								
				break;
				case "un":
					return this.seguent(x);								
				break;
				case "dos":			
					return this.seguent(this.seguent(x));
				break;
				case "tres":
					return this.seguent(this.seguent(this.seguent(x)));
				break;
				case "quatre":
					return this.seguent(this.seguent(this.seguent(this.seguent(x))));
				break;
				case "molts":
					return "molts";
				break;
				case "desconegut":
					return "desconegut";
				break;
				default:
					return "desconegut";

		}//cerrar switch


		} //cerrar else



	}; //cerrar this.suma



/*Otra forma de hacerlo es sustituir la función de sumar sobrecargada por esta otra*/

function afegirMetode(objecte, nom, funcio){
    var old = objecte[nom];
    objecte[nom] = function(){
                if(funcio.length == arguments.length)   
                    return funcio.apply(this, arguments);
                else if (typeof old == 'function')
                    return old.apply(this, arguments);
        };
}
 
 

afegirMetode(this, "suma", function(){

	return "desconegut";
});

afegirMetode(this, "suma", function(x){

	return arguments[0];
});


afegirMetode(this, "suma", function(numero,x){

switch(numero){
             
                case "cero":
                    return this.suma(x);                                
                break;
                case "un":
                    return this.seguent(x);                             
                break;
                case "dos":         
                    return this.seguent(this.seguent(x));
                break;
                case "tres":
                    return this.seguent(this.seguent(this.seguent(x)));
                break;
                case "quatre":
                    return this.seguent(this.seguent(this.seguent(this.seguent(x))));
                break;
                case "molts":
                    return "molts";
                break;
                case "desconegut":
                    return "desconegut";
                break;
                default:
                    return "desconegut";

				}
		});



*/

} //cerrar yahoo

var yahoo1 = new Yahoo();

alert(yahoo1.seguent("desconegut"));
alert(yahoo1.seguent("cero"));
alert(yahoo1.seguent("un"));
alert(yahoo1.seguent("dos"));
alert(yahoo1.seguent("tres"));
alert(yahoo1.seguent("quatre"));
alert(yahoo1.seguent("molts"));
alert(yahoo1.seguent("seis"));

alert(yahoo1.suma());
alert(yahoo1.suma("un"));
alert(yahoo1.suma("cero","dos"));
alert(yahoo1.suma("quatre","dos"));
alert(yahoo1.suma("un","dos"));
alert(yahoo1.suma("desconegut","tres"));
alert(yahoo1.suma("cero","un"));
alert(yahoo1.suma("quatre","cero"));
alert(yahoo1.suma("quatre","un"));
alert(yahoo1.suma("tres","un"));
alert(yahoo1.suma("tres","cero"));
alert(yahoo1.suma("tres","dos"));
alert(yahoo1.suma("un","desconegut"));

SOLUCIO RELLOTGE

function Rellotge(){
	var rellotge;
	var rellotgeSec;
	var tempsFun = 0;
	this.ContructorRellotge = function(){
		rellotge = new Date();
	;
	this.GetTime = function(){
		rellotgeSec = new Date();
		var timeMili = rellotgeSec.getTime() - rellotge.getTime();
		var seg = timeMili / 1000;
		return tempsFun + seg;
		
	this.StopTime = function(){
		tempsFun = this.GetTime();
		rellotge = null;
	};
	this.StartTime = function(){
		rellotge = new Date();
	};
	this.setFunctionOnTime =function(time,funcion){
		var that=this;
 	
	setInterval(function () { that.hola(); }, time*1000);   //hola es una funció d'exemple

	};
	
       this.hola=function(){

       alert("hola mundo");
       };
}

var rellotge = new Rellotge();
rellotge.ConstructorRellotge();
alert(rellotge.GetTime());