Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Basics (Retired) Storing and Tracking Information with Variables Using String Methods

Angela Bortone
Angela Bortone
7,405 Points
Posted by Angela Bortone
Angela Bortone
7,405 Points

I'm having difficulty with this code challenge.

When I try to use concatenation to alter the variable username to complete the second objective the first part of the challenge no longer passes. What's up?

The final value of username should be '23188XTR#SMITH'

app.js 
var id = "23188xtr";
var lastName = "Smith";

var userName = id.toUpperCase();
 username = username + "#";
username += lastName.toUpperCase();

1 Answer

Stephen Bone
Stephen Bone
12,359 Points
Stephen Bone
Stephen Bone
12,359 Points

Hi Angela

You're almost there.

After the initial declaration and assignment of userName you are then just missing out the capital N in userName.

So your code should be as below:

var id = "23188xtr";
var lastName = "Smith";

var userName = id.toUpperCase();
userName = userName + "#";
userName += lastName.toUpperCase();

As the code below was my initial and poor attempt to answer the question I'll leave it here just as an alternative way to do it.

For example:

var userName = id.toUpperCase() + "#" + lastName.toUpperCase();

Hope it helps!

Stephen

John Magee
John Magee
Courses Plus Student 9,058 Points

Except there is nothing wrong with how she wrote the code...getting the solution correction should be the goal - the check code needs to be more forgiving

Stephen Bone
Stephen Bone
12,359 Points
Stephen Bone
Stephen Bone
12,359 Points

Hi John

Yeah I can't disagree with you. I was actually just continuing to play with her code to see if I could get it to pass.

I wondered if it didn't like the attempt to concatenate using the += but even taking that out and re-jigging it a few different ways I can't get it pass except using with the way I demonstrated.

Stephen

Stephen Bone
Stephen Bone
12,359 Points
Stephen Bone
Stephen Bone
12,359 Points

Scratch that the code does work I just realised that the variable isn't capitalised properly.

Using username rather than userName.

I will update my original post to reflect this. Apologies as I should have spent longer looking at the actual code rather than working out how I would complete it.

Angela Bortone
Angela Bortone
7,405 Points
Angela Bortone
Angela Bortone
7,405 Points

I capitalized the rogue letter and it worked! Is JavaScript particular about keeping the lower/upper/camel/case consistent - I thought in an earlier video Dave said that it wasn't so important other than for readability.

John Magee
John Magee
Courses Plus Student 9,058 Points

Sharon

Javascript is VERY case sensitive (most programming languages are actually) and it's important to remember the case sensitivity especially when you get into more 'complex' things that you really will want to use (for instance getElementById).