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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.
First argument is the pattern we want to find in the string. The pattern can be a string or Regex. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp
Second argument is the replacement. It can be a string or a function. If the string is emtpty, we essentially just remove the pattern.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace