This program implements a default circular linked list. This is one of the oldest and one of the most popular data structures. The main feature of linked lists is that adding/deleting elements is far more quick than in built-in arrays/lists because it doesn't need to recreate itself. The more elements it contains, the more difference in working between linked list and array.
Defining variant formula: number of the gradebook % 4 My variant = 1326 % 4 = 2
The project requires node.js to be installed on your machine. I was working with 16.17.1 version.
Install all dependancies:
$ npm installTo run application:
$ npm startTo run tests:
$ npm testPersonally, I had more problems with unit tests than impact. The problems are that the two variants of the application are working totally different, and all methods are dependent from each other, so to test to run successfully I needed to remade all methods. If I couldn't find out wheather something had broken or not during the work, these unit tests were useless. Also I can say that I paid more attention to the tests than to the program itself. It more likely was caused by my little experience of creating unit tests. However, tests are very useful in commercial projects because every broken part of the application equals lost money.