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<!DOCTYPE html> <html> <body> <h1>JavaScript Objects</h1> <h2>Adding a Method</h2> <p id="demo"></p> <script> // Create an Object const person = { firstName: "John", lastName: "Doe", id: 5566, }; // Add a Method person.name = function() { return this.firstName + " " + this.lastName; }; // Display Object Data document.getElementById("demo").innerHTML = "My father is " + person.name(); </script> </body> </html>
