Basic WebShare API Code

webshare.js

function showElement(element) {
  element.classList.remove('hidden');
}

function sharePage() {
  const share = {
    text: document.querySelector('title').innerText,
    url: window.location.href,
  };

  navigator.share(share);
}

function addShareListener(element) {
  element.addEventListener('click', sharePage);
}

if (navigator.share) {
  Array.from(document.querySelectorAll('.display-webshare-only')).forEach(showElement);
  Array.from(document.querySelectorAll('.webshare-trigger')).forEach(addShareListener);
}