JavaScript Codecademy 5.5函数无法返回正确的数据

Question

Thanks for having a look at my question! I'm trying to complete the JavaScript course in codecademy and this has me stumped. I can't even find help in the codecademy forums. I am trying to figure out why "Bob Jones" isn't logged to the console. Any help is greatly appreciated. Here is my code:

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"*/
function search(lastName){
    var contactsLength = contacts.Length;
    for(var i = 0; i<contactsLength; i++){
        if(lastName === contacts[i].lastName){
            printPerson(contacts[i]);
        }
    }
};
search("Jones");

Answer 1

The problem is that JavaScript is case sensitive and the array length is available under the length property, not Length .

PS learn to use a debugger.