- 函数属性作为一个方法访问

<p>创建和使用对象方法。</p>

<p>对象方法作为一个函数定义存储在对象属性中。</p>

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

<script>

  var person = {

    firstName: "John",

    lastName: "Doe",

    id: 5566,

    fullName: function() {

      return this.firstName + " " + this.lastName;

    }

  };

  document.getElementById("demo").innerHTML = person.fullName();

</script>