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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.
why do you need a price is not null check when you have to check price > 50 in the answer??
Ofcourse its always not null than.
Indeed!
I know the answer is accepted without:
where/and price is not null
but I feel like it should be required.
Can anyone explain why this may not be the case?
Thanks!
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I noticed not too many people use the trim() function. In the real world it's a good idea. In my limited experience, user and external data is usually sketchy at best.