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.
wow i don't understand regex yet
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And what's the suggestion? The instructions are clear.
Difficult to understand the problem
Which language, what's wrong?
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hahahaha
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i got it, thank you!
Please use a spoiler flag when you post code. I put the flag for you this time.
Your code fails when array is
null. So you must find a way to check this case and handle it in the proper way.This comment is hidden because it contains spoiler information about the solution
thannk u :)
You're removing all of them.
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Spend hours trying to find the solution. In the end the answer is too simple.