(If documentGetElementById("lol") is ever used, an error will be thrown automatically)
This paragraph has id = "lol"
This paragraph has id = "lol"
(If documentGetElementById("lol") is ever used, an error will be thrown automatically)
This paragraph has id = "lol"
This paragraph has id = "lol"
Note: An error is usually thrown for this automatically. However, auto-testing is possible. An automatic test can be performed by checking the number of elements with a given id.