where can I find challenge-like questions and exercises

Question

I am finding the challenges, in one hand very helpful, because you learn better practicing. But in the other hand frustrating, since they are very fast and there is no option to check why your answer was wrong. Anyone know where to find similar exercises to practice?

Answer 1

Code Academy

Answer 2

hackerteam

Answer 3

freeCodeCamp

Answer 4

Udemy

Answer 5

Take a course. Every course is devided into sections. In order to go to the next section you'll have to finish you challenge.
I think it's better than hack challenging, except if you are good enough and you want to try you coding speed!

Answer 6

Code Wars
http://www.codewars.com/

Answer 7

codecademy is great bc they show you how to build certain things by using for instance loops. so you will make a game with the code using loops. and if you need extra help you can look at hints or at forums. :)