I know my code is wrong, but help me figure this out please

Question

This is the question I'm trying to answer(forgive me for this being so long):

We'll be creating a function that can search for people with a specific last name and print those people out with the printPerson function.

Create a function called search that takes a parameter called lastName. Leave the list function alone.

Like with the last exercise, define a variable and store the number of items in the array in it. (Since every function has its own context, or scope, you can call this variable contactsLength, too, if you like!)

Create a for loop that runs through all of the items in the array. For this step, the code for search is identical to that of list.

The twist comes here: in the body of the loop, rather than printing out every single item in the array, add an if statement that checks to see if the lastName property of the object is equal to the lastName argument.

Have the function run printPerson on the person if and only if the lastName property of the person matches the lastName argument.

At the bottom of the file, call the search function, passing in "Jones" as the last name to search for.

Here is my code, although I know that the search function is wrong. I just cant figure it out.

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]):
}
}

var search - function(lastName) {
     for ( i = 0; i < contactsLength; i ++) {
       if (contacts[i].lastName === lastName) {
              (printPerson(person) === lastname);
}
}
}

Answer 1 · 2015-01-21T04:10:09Z

January 21, 2015 4:10am

Hi Gary,

There were a few errors with your code. I made it work. Give it a look and if you have questions feel free to ask.

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];

//I put this variable outside so all functions have access to it

var contactsLength = contacts.length;

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

function list() { 

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

var search = function(lastName) { 


    for ( i = 0; i < contactsLength; i ++) { 
        if (contacts[i].lastName === lastName) {
                //We are moving along the contacts array, once we get a match, 
               //we use that position in the array to get the information we want
            printPerson(contacts[i]); 
        }

    }
};

Answer 2 · 2015-01-21T04:22:56Z

January 21, 2015 4:22am

edit: Hugo Paz provided an answer for you

Answer 3 · 2015-01-21T04:35:20Z

January 21, 2015 4:35am

I appreciate your help. I'm having a hard time understanding printPerson(contacts[i]; The reason I'm having a hard time with that is because in the directions its says " Have the function run printPerson on the person if and only if the lastName property of the person matches the lastName argument." Maybe I'm over looking something, I don't know, but can you explain if you don't mind please

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Gary Christie

Gary Christie

I know my code is wrong, but help me figure this out please

3 Answers

Hugo Paz

Hugo Paz

David Tonge

David Tonge

Gary Christie

Gary Christie

Hugo Paz

Hugo Paz