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<!DOCTYPE html>
<html>
<body>
​
<h2>JavaScript Getters and Setters</h2>
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<p>Getters and setters allow you to get and set properties via methods.</p>
​
<p id="demo"></p>
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<script>
// Create an object:
const person = {
  firstName: "John",
  lastName: "Doe",
  language: "",
  set lang(lang) {
    this.language = lang.toUpperCase();
  }
};
​
// Set a property using set:
person.lang = "en";
​
// Display data from the object:
document.getElementById("demo").innerHTML = person.language;
</script>
​
</body>
</html>
​