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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.
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Second argument is an empty string in order to remove all characters that fall with the regex (a-m) which leaves a string with only error chars which is what the question wanted
this answer is wrong but the tests dont cater for it so it passes , input of 1,2,4,5 would give 1,2,4,5 instead of 5,4,2,1 respectively
@deni2020 please explain your answer am interested in knowing the science behind it
someone explain
guy i need help HOW CAN I GET BETTER AT SOLVING KATAS(JS) LIKE THE LIKES OF @BattleRattle
bruh what if its a hotel steercase and u actually endup on another floor ,it not completely absurd