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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
You may be right, but I like to avoid boilerplate whenever possible. In my opinion it enhances readability to use situational syntactic sugar like this: because it can only be used in certain circumstances, its use highlights that you are in those circumstances.
You're adding an empty string between the words, if the answer is "camel Casing", you are returning "camelCasing". But more importantly, this only solves the case of single word inputs or the input "camelCasing". You need to solve the general case so that it also handles "fooBar", "thisWordHere", and whatever else the user enters.
I timed out as well with this same solution. How did this one pass I wonder?
Perfectly servicable and efficient. Wouldn't best practices encourage adding a
return
line? Obviously not necessary for such simple code.