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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.
it is a unary operator, adding + before a string converts to number
example : let str='5'
+str = 5 //number
this is way to convert a string value into a number.
This comment is hidden because it contains spoiler information about the solution
Use spoiler flag next time please.
This comment is hidden because it contains spoiler information about the solution
nice solution