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<!DOCTYPE html> <html> <body> <h1>JavaScript Class Methods</h1> <p>How to define and use a Class method.</p> <p id="demo"></p> <script> class Car { constructor(name, year) { this.name = name; this.year = year; } age() { const date = new Date(); return date.getFullYear() - this.year; } } const myCar = new Car("Ford", 2014); document.getElementById("demo").innerHTML = "My car is " + myCar.age() + " years old."; </script> </body> </html>
