​x
 
<!DOCTYPE html>
<html>
<body>
​
<h1>JavaScript 对象</h1>
​
<h2>constructor 属性</h2>
​
<p id="demo"></p>
​
<script>
const person = {
  firstName: "Bill",
  lastName: "Gates",
  age: 19,
  eyeColor: "blue"
};
​
let text = person.constructor;
document.getElementById("demo").innerHTML = text;
</script>
​
</body>
</html>
​