it's about class extend ( but javascript doesn't have real 'class' ).you may use Prototype.js
or mootool.js
or do like this?
function Human () {
this.init.apply ( this, arguments );
}
Human.prototype = {
init: function () {
var optns = arguments[0] || {};
this.age = optns.age || 0;
this.name = optns.name || "nameless";
},
getName : function () {
return this.name;
},
getAge : function () {
return this.age;
}
}
function Man () {
this.init.apply ( this, arguments );
}
Man.prototype = {
init : function () {
Human.prototype.init.apply (this, arguments);
this.sex = "man";
},
getName : Human.prototype.getName,
getAge : Human.prototype.getAge,
getSex : function () {
return this.sex;
}
}
function Woman () {
this.init.apply ( this, arguments );
}
Woman.prototype = {
init : function () {
Human.prototype.init.apply (this, arguments);
this.sex = "woman";
},
getName : Human.prototype.getName,
getAge : Human.prototype.getAge,
getSex : Man.prototype.getSex
}
var human = new Human({age:60,name:"Tom Tomas"}),
man1 = new Man({age:30,name:"Wood Tomas"}),
woman1 = new Woman({age:19,name:"Mary Tomas"});
console.log( human.getName() );
console.log( man1.getName() );
console.log( woman1.getName() );
console.log( human.getAge() );
console.log( man1.getAge() );
console.log( woman1.getAge() );
console.log( human.getSex && human.getSex() );
console.log( man1.getSex() );
console.log( woman1.getSex() );
or you could use jQuery's $.extend to do this. wish can help !