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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.
Isn't currentValue actually previousValue?
Consider declaring var
divabove and outside of for loop. Declaring vardivinside for loop works only because of hoisting. In ES6, ifvaris changed tolet,div.lengthwould cause ReferenceError: div is not defined.