Home
<!DOCTYPE html> <html> <body> <h1>Demo: Constructor</h1> <script> function Person(FirstName, LastName, Age) { this.firstName = FirstName || "unknown"; this.lastName = LastName || "unknown"; this.age = Age || 25; this.getFullName = function () { return this.firstName + " " + this.lastName; } }; var person1 = new Person("James","Bond",50); alert(person1.getFullName()); var person2 = new Person("Tom","Paul"); alert(person2.getFullName()); </script> </body> </html>
Result:
