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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.
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What I understand is that when using Math.pow() it's not necessary to convert a string to a number with "parseInt(string)", because it's automatically converted to an integer, BUT I'm not so sure if it's a good practice.
thank you very much!
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I'm getting this error even if I have passed all tests!!!, what's going on? :
TypeError: Cannot read property 'length' of null
at sumArray
at /home/codewarrior/index.js:23:19
at /home/codewarrior/index.js:61:5
at Object.handleError