How to make links work?

Question

JavaScript

but the menu submenu opened
as it is now

https://jsfiddle.net/L8pwrs6m/2/

Answer 1

$('.main-header__list').on('click', 'a', function(e) {
  if($(this).attr("href") == "")
  	e.preventDefault();
  $(this).next('.submenu').slideToggle();
});