* fix error in SinglyLinkedList head method
* test: update check head test for SinglyLinkedList
* fix: code style error
* fix: remove extra semicolons
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Co-authored-by: Bekzod <bekzodisakov18@gmail.com>
* Added Middle of linked-list implementation.
* Added Middle of LL function and tests
* Refactor: Added method in singly LL and its tests
* Refactor: Method name and inline test calls
* Use `!== null` instead of `!= null`
Co-authored-by: Lars Müller <34514239+appgurueu@users.noreply.github.com>