Loading collection data...
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 might think about, if the input have spaces in front. in that case this will throw ""
It's just a JS (and many other languages) strings feature. You can also slice them.
Does this work because inputString is treated as an array when followed by square brackets?