html运行实例（eg_js_object_constructor

代码示例：（标识：eg_js_object_constructor_4）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 对象构造器</h1>

<p id="demo"></p>

<script>

// Person 对象的构造器函数
function Person(first, last, age, eye) {
  this.firstName = first;
  this.lastName = last;
  this.age = age;
  this.eyeColor = eye;
}

// 创建两个 Person 对象
var myFriend = new Person("Bill", "Gates", 62, "blue");
var myBrother = new Person("Steve", "Jobs", 56, "green");

// 向第一个对象添加 name 方法
myFriend.name = function() {
  return this.firstName + " " + this.lastName;
};

// 显示全名
document.getElementById("demo").innerHTML =
"My friend is " + myFriend.name(); 
</script>

</body>
</html>