html运行实例（eg_js_object_property

代码示例：（标识：eg_js_object_property_delete）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 对象属性</h1>

<p>您可以删除对象属性。</p>

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

<script>
var person = {
  firstname:"Bill",
  lastname:"Gates",
  age:62,
  eyecolor:"blue"
};

delete person.age;
document.getElementById("demo").innerHTML =
person.firstname + " is " + person.age + " years old.";
</script>

</body>
</html>