Wow, I didn't know the console.log() could produce innacurate results! Good to know. Thanks for your help

You can always print the returned value instead in your IDE, like this: p to_camel_case("the-stealth-warrior") it's easier then to copy and paste your code here.

The reason I printed is so I can see what is being returned in my IDE.
And i'll look at how I can address underscores, thank you.

Return instead of printing the result for once. But your code isn't ok, it fails with underscores.

Without seeing your previous code, how would we know what was wrong? With more than 14k completions I doubt the tests have a problem.