Tryit Editor v2.7

Edit This Code:
<!DOCTYPE html>
<html>
<body>

<p>myObject.fullName() will return John Doe:</p>

<p id="demo"></p>

<script>
var myObject = {
    firstName:"John",
    lastName: "Doe",
    fullName: function() {
        return this.firstName + " " + this.lastName;
    }
}
document.getElementById("demo").innerHTML = myObject.fullName(); 
</script>

</body>
</html>