html运行实例（js_object_display_stringify_function

代码示例：（标识：js_object_display_stringify_function_tostring）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 显示对象</h1>

<p>JSON.stringify will not stringify functions.</p>

<p>You have to convert functions to strings first:</p>

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

<script>
const person = {
  name: "Bill",
  age: function () {return 19;}
};
person.age = person.age.toString();

document.getElementById("demo").innerHTML = JSON.stringify(person);
</script>

</body>
</html>