I have a list with checkboxes left side and I want to add only checked list items in new array

[this is a image of list.][1]

from this list I want to create new array and add only checked items in new array, I don t know exactly data that will be in this list and I want dynamic solution for this problem. Sorry I could not show you the code I have no idea how the code might look. [1]: https://i.stack.imgur.com/BHfjO.png