doubleTap.js

let t = 0
const tapListener = e => {
  let n = +new Date
  if (n - t <= 500) {
    e.preventDefault()
  }
  t = n
  return false
}

export function disableDoubleTap() {
  document.documentElement.addEventListener('touchend', tapListener, false)
}

export function enableDoubleTap() {
  document.documentElement.removeEventListener('touchend', tapListener, false)
}