代码示例:(标识:eg_js_object_accessors_get_2)
<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Getter 和 Setter</h1>

<p>Getter 和 Setter 允许您通过方法获取和设置属性。</p>

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

<script>
// 创建对象:
var person = {
  firstName: "Bill",
  lastName : "Gates",
  language : "en",
  get lang() {
    return this.language.toUpperCase();
  }
};
// 使用 getter 显示对象的数据:
document.getElementById("demo").innerHTML = person.lang;
</script>

</body>
</html>
运行结果: