5 platforms to boost your coding skills with online tests and challenges

1. HackerRank
HackerRank is a place where programmers from all over the world come together to solve programming problems. It provides verified solutions you can check at any time and a wide array of programming/coding questions for you to solve.
https://www.hackerrank.com

2. Exercism IO
Exercism is a free platform which aims to provide opportunity for people of all backgrounds to develop their programming skills through practice and mentorship. They cover over 50 languages including JavaScript.
https://exercism.io

3. Codewars
Codewars provides you with ‘kata’ challenges focused on improving skill and technique. Some train programming basics, while others focus on complex problem-solving. They also provide puzzles meant to test your creative problem-solving.
https://www.codewars.com

4. TopCoder
This platform provides a list of algorithmic challenges from the past that you can complete on your own directly online. At TopCoder, you can compete with other programmers as well.
https://www.topcoder.com

5. LeetCode
Leetcode is an interview-based Platform where programming questions are asked directly, to help you prepare for your job interview. Their questions are based on 9 programming languages.
https://leetcode.com

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