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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.
This solution relies on operators throwing a
TypeErrorto check if the arguments are numbers. Deferring calculation using lambda functions would result incalculator('a','b','+')incorrectly returning"ab"instead of"unknown value".That being said, inputs like
calculator(3,0,'+')would result in aZeroDivisionErrorbeing thrown instead of the correct answer of3.