// CoreUI and necessary plugins
script(src='node_modules/@coreui/coreui/dist/js/coreui.bundle.min.js')
script(src='node_modules/simplebar/dist/simplebar.min.js')

script.
  const header = document.querySelector('header.header');

  document.addEventListener('scroll', () => {
    if (header) {
      header.classList.toggle('shadow-sm', document.documentElement.scrollTop > 0);
    }
  });

block scripts

script 
  block js