function getWhatsAppAddressBook() {
  /* Switch to the All Contacts view in WhatsApp */
  $('button.icon-chat').click();

  var list = {},
    position = -1;

  if (position != $('div.drawer-body').scrollTop()) {
    $('div.chat').each(function (i) {
      /* Get the profile picture of the WhatsApp contact */
      var img = $(this).find('img.avatar-image.is-loaded');

      /* Extract the Contact Full Name */
      var title = $(this).find('div.chat-title');

      /* Extract the WhatsApp Phone number */
      var tel = img[0].src.match(/u=(\d*)/);

      /* Save the entry in an associated array */
      list[tel[1]] = { thumb: img[0].src, name: title[0].innerText };
    });

    position = $('div.drawer-body').scrollTop();
    $('div.drawer-body').scrollTop(position + 72);
  }

  console.log(list);
}