Function debounce

src/client/ejs.mjs:334–340

(fn, delay = 50)

}

function debounce(fn, delay = 50) {
  let timeout
  return arg => {
    if (timeout) clearTimeout(timeout)
    timeout = setTimeout(() => fn(arg), delay)
  }
}

if (window.page && /^chapter|hints$/.test(window.page.type)) {
  chapterInteraction()