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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.
it is working.. so much reefs here..
Please read the posts below, it's been asked and answered many times already.
seems 1234 doesn work this way
Wrong output for '1234
': expected true to equal false
122545 people who already solved this kata might disagree.
You transform each digit to a number and then check if it's not a number. This fails for some characters, e.g. white space.