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.
I just try '010.013.037.01', the regex return false.
In the description, '010.013.037.01' expect return false too.
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the sort just sort the array, made it be String type is not sort, maybe used split before sort? is the split made it be String type.
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I don't quite understand what you mean, you mean if obj[el] is non-existent, delete obj[el]?
But the question is we need to find out the odd one, not only the only one.