What do these settings in views do? And in what situation may be needed?

Question

Drupal

Here are these in Format Settings:

According to the description in the settings itself, I did not understand anything.

Answer 1

Row class adds a css class to each row of the output. For example, if you set the format to "List" and write Row class = "my-row-class", then the output will be:

<ul>
  <li class="my-row-class">строка 1</li>
  <li class="my-row-class">строка 2</li>
  <li class="my-row-class">строка ...</li>
</ul>

Add views row classes adds default css classes like views-row to rows:

<ul>
  <li class="views-row my-row-class">строка 1</li>
  <li class="views-row my-row-class">строка 2</li>
  <li class="views-row my-row-class">строка ...</li>
</ul>