jQuery hide all elements with the same id

Question

by topic I have some divs with id = \"loader\".

In my jQuery code I have

  $(\"#loader\").hide(),

but it works only with the first

Answer 1

Having more than one element with the same ID is not valid HTML. You can only have one element with the ID (#loader) in the whole page. That's why jQuery is hiding only the first element. Use the class instead of the id:

$('.loader').hide();