practice-places.md

http://www.codewars.com/ --good place to start https://projecteuler.net
https://www.reddit.com/r/dailyprogrammer https://leetcode.com/ --more algorithms https://www.hackerrank.com/ --more competitive http://codecondo.com/coding-challenges/ --lists many http://reactivex.io/learnrx/ --learn thing for js for array manipulation

challenges: https://www.khanacademy.org/computing/computer-science/algorithms/towers-of-hanoi/p/challenge-solve-hanoi-recursively