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.
This comment is hidden because it contains spoiler information about the solution
thx for reply man! its help me so much : )
To convert it into a number type.
Why "+"? I don't understand :/
okay, I got it. thank you!
That's the starting value for
reduce. In this case, it's a sum, so you want to start at0and then add to it.is it the index?
why 0?
This is actually pretty understandable
Looks elegant but it's actually pretty bad wrt performance and it will result in a stack overflow by a certain range size. A new execution context is created for every single value in the range.
It'd be more suitable for a functional language.
I don't understand this solution. Would someone be kind to explain it? Thank you
I don't understand this :(
This comment is hidden because it contains spoiler information about the solution