[原]JavaScript学习笔记(七.创建对象)
1.工厂模式创建对象--无参构造方法//工厂方式有一个弊端，就是每个对象被实例化时，都会实例化类中的方法//会造成每个对象都有独立的方法版本function createStudentFactory(){var stu = new Object();stu.Id = "1";stu.Name = "stu";stu.Skill = "Ajax & javaScript";stu.showSkill = function(){alert(stu.Skill);}return stu;}//不支持方法的重载哟!//function createStudentFactory(id,name,skill)//{//}var stu = createStudentFactory();stu.showSkill();
2.工厂模式2--带参构造方法
function createStudentFactory(id,name,skill){var stu = new Object();stu.Id = id;stu.Name = name;stu.Skill = skill;stu.showSkill = function(){alert(stu.Skill);}return stu;}var stu2 = createStudentFactory("2","zxh","java");stu2.showSkill(); 3.混合方式--属性私有，方法共有
function Student(id,name,skill){this.Id = id;this.Name = name;this.Skill = skill;this.Likes = new Array("coding","game");}Student.prototype.showSkill = function(){alert(this.Skill);}var stu1 = new Student(1,"zxh","Ajax");var stu2 = new Student(2,"zxh2","Java");stu2.Likes.push("travel");stu1.showSkill();stu2.showSkill();alert(stu1.Likes);alert(stu2.Likes);
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