Your code assumes the biggest length difference is b1 having the greatest length and b2 having the shortest length but you do not consider the vice-versa case

'Looks like you've solved it'

duplicate question

@Sri_SriPod Thanks so much for the recommendation. I was able to complete the last test only because of that.

I do not quite understand the relationship between price, discount, holiday_cost and the return value. Could someone explain to me? Thanks.

That makes sense. Thank you!

charAt will fail if name is '' or undefined.

Sorry! I'm using JavaScript!

TypeError: Cannot read property 'charAt' of undefined
at hello
at /home/codewarrior/index.js:16:20
at /home/codewarrior/index.js:18:5
at Object.handleError

It's javascript, and it should work in both cases, please provide an example of your code that doesn't work marking your post as having spoiler content.

Hi Jenna,

Please specify the programming language in your messages. And if possible try to paste the error message here. Thank you.

I answered a post like this above, too. Check https://stackabuse.com/default-arguments-in-python-functions/ website out and scroll to "Functions with default arguments". The key here is to use optional or default arguments...
Hope this helps. 😀