Instructions: Add a method to the Person's prototype called "getInitials" that returns the first letter of their first and last name, both capitalized.

Supplied Code:

function Person(firstName, lastName) {

}

/* Do not modify code below this line */

const johnDoe = new Person('john', 'doe'); console.log(johnDoe.getInitials(), '<-- should be "JD"');

My code that is not being accepted as correct:

function Person(firstName,lastName) { this.firstName="john"; this.lastName="doe";

this.getInitials=function()

{

return this.firstName[0].toUpperCase()+this.lastName[0].toUpperCase();

} }

/* Do not modify code below this line */

const johnDoe = new Person('john', 'doe'); console.log(johnDoe.getInitials(), '<-- should be "JD"');