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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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fantastic solution
Explain please? Thanks!!
What's the $1 for?
Sweet thanks you! I've been learning regrex but it's a bit tricky
only when in the first string.
in the replacement string, it refers (together with the following number) to the group caught by the parentheses in the first string: $1 -> first group, $2 -> second group... see g.g. http://users.cs.cf.ac.uk/Dave.Marshall/Internet/NEWS/regexp.html
what's the dollar sign $ for in "-$1-"? I thought that means the end of the line?