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

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

var contacts = [bob, mary];

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]);
	}
}

/*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 (lastName === contacts[i].lastName) {
            console.log(contacts[i].firstName + " " + contacts[i].lastName);
        }
    }
}

search("Jones");

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

add("Kamil", "Lazam", "kamillazam@gmail.com", "798520099");
list();
search("Lazam");