Code for Address Book in JavaScript

addressbook.js

var alley = {
    firstName: "Albert",
    lastName: "Coder",
    phoneNumber: "(650) 777-7777",
    email: "bob.jones@example.com"
};

var sukh = {
    firstName: "Sukhi",
    lastName: "D",
    phoneNumber: "(650) 888-8888",
    email: "mary.johnson@example.com"
};

var contacts = [alley, sukh];

function printPerson(person) {
    console.log(person.firstName + " " + person.lastName);
}

function list() {
	var contactsLength = contacts.length;
	for (var i = 0; i < contactsLength; i++) {
		printPerson(contacts[i]);
	}
}

function add(firstName, lastName, email, phoneNumber) {
    contacts[contacts.length] = {
    firstName: firstName,
    lastName: lastName,
    phoneNumber: phoneNumber,
    email: email
};
    }

/*Create a search function
then call it passing "Jones"*/

var search = function(lastName) {
    var contactsLength = contacts.length;
	for (var i = 0; i < contactsLength; i++) {
	    if(contacts[i].lastName == lastName) {
	        console.log(printPerson(contacts[i]));
	        break;
	        }
	    }
}
search("D");
add("Akshay", "Kumar", "ac@csiom.com", "9023232373");
list();