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.
Dark but fun, like laughting when someone fall
best one :)
count[s] will return true if the Key s is in the object.
So if the key s is in the object it will increase the value (++), else if will add it and put the value 1 (count[s] = 1)