function initiate() {
  const button = document.getElementById("save");
  button.addEventListener("click", newitem);
}
function newitem() {
  const keyword = document.getElementById("keyword").value;
  const value = document.getElementById("text").value;
  sessionStorage.setItem(keyword, value);
  show(keyword);
}
function show(keyword) {
  const databox = document.getElementById("databox");
  const value = sessionStorage.getItem(keyword);
  databox.innerHTML = "<div>" + keyword + " - " + value + "</div>";
}
window.addEventListener("DOMContentLoaded", initiate);