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<!DOCTYPE html> <html> <body> <h2>JavaScript Objects</h2> <p>The prototype property allows you to add new methods to objects constructors:</p> <p id="demo"></p> <script> function Person(first, last, age, eye) { this.firstName = first; this.lastName = last; this.age = age; this.eyeColor = eye; } Person.prototype.nationality = "English"; const myFather = new Person("John", "Doe", 50, "blue"); document.getElementById("demo").innerHTML = "The nationality of my father is " + myFather.nationality; </script> </body> </html>
