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<!DOCTYPE html> <html> <body> <h1>JavaScript Objects</h1> <h2>The prototype Property</h2> <p id="demo"></p> <script> function Person(first, last, age, eye) { this.firstName = first; this.lastName = last; this.eyeColor = eye; } const myFather = new Person("John", "Doe", "blue"); const myMother = new Person("Sally", "Rally", "green"); Person.prototype.nationality = "English"; document.getElementById("demo").innerHTML = "My father is " + myFather.nationality + "<br>" + "My mother is " + myMother.nationality; </script> </body> </html>
