Fixed formatting problems, example and JSDoc

[Alexandrshy]

Fixed:

1. The implementation of the examples to prevent rewrite/full cleaning of the original array;
2. Code formatting;
3. Moved the recursion example to the ES6 directory, since this solution was written in ES6.

P.S. Maybe worth removing the separation between ES6 and JS? ES6 was released more than 4 years ago and it makes no sense to separate these decisions, I can do it in the next PR, what do you think about it?

[egonSchiele]

Hello, sorry for my super-late response. It looks like there are some conflicts that need to be resolved before merge, could you take a look?

Adit

[Alexandrshy]

Hello, done