function Person(firstName, lastName){
this.firstName = firstName;
this.lastName = lastName;
}
Person.prototype.getFullName = function () {
return this.firstName + " " + this.lastName;
}
Person.prototype.greet = function (person) {
document.write("Hello" + person.getFullName()
+", I m" +this.getFullName());
}
var johnDoe = new Person("john","Doe");
var janeDoe = new Person("jane","Doe");
johnDoe.greet(janeDoe);
引用对象。