Refactor any sort algorithm

- Please help me refactor `Any sort` algorithm in `/sorting/...js`
- Examples include: performance improvement, refactoring code, fix typo... 👍 If you edit source code file, please add your name in author section 
![image](https://user-images.githubusercontent.com/5584709/46341660-fab41280-c662-11e8-9498-b801373c62a5.png)

Thank you 🍭 