### Many existing JS code files need explanations. Add those explanations to each file and raise a PR. #### PR Branch: Each folder has its own branch. Check [contributing.md](https://github.com/MadaZZ/JS-Concepts/blob/master/CONTRIBUTING.md#branches) for more details.
Many existing JS code files need explanations.
Add those explanations to each file and raise a PR.
PR Branch: Each folder has its own branch. Check contributing.md for more details.