Google digits

Press 1-9 on Google search page to open the corresponding link
当前为 2021-03-01 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         Google digits
// @description  Press 1-9 on Google search page to open the corresponding link
// @include      https://www.google.tld/*
// @version      1.2.1
// @author       wOxxOm
// @namespace    wOxxOm.scripts
// @license      MIT License
// @run-at       document-start
// @grant        none
// ==/UserScript==

document.documentElement.appendChild(document.createElement('style')).textContent = /*css*/ `
body {
  counter-reset: digitnav;
}
#rso > div > :not([data-ved]) a h3::before {
  counter-increment: digitnav;
  content: counter(digitnav);
  position: absolute;
  margin-left: -1em;
  opacity: .5;
}
`;

window.addEventListener('keydown', function(e) {
  const k = e.which;
  const digit =
    k >= 48 && k <= 57 ? k - 48 :
    k >= 96 && k <= 105 ? k - 96 :
    -1;
  if (digit >= 0 &&
      location.href.match(/[#&?]q=/) &&
      !e.metaKey && !e.ctrlKey &&
      e.target.localName != 'input') {
    const el = document.querySelectorAll('a h3')[digit - 1];
    const link = el && el.closest('a');
    if (!link) return;
    el.style.backgroundColor = 'yellow';
    link.focus();
    link.dispatchEvent(new MouseEvent('click',
      e.shiftKey && {shiftKey: true} ||
      e.altKey && {ctrlKey: true} ||
      {}));
    setTimeout(() => (el.style.backgroundColor = ''), 100);
  }
}, true);