sS hjs_autoExpandingTextAreas() {
  ret hjs([[
    var autoExpandTextarea = function (field) {
      field.style.height = "1px";
      field.style.height = field.scrollHeight + 'px';
    };
  
  document.addEventListener('input', function (event) {
    if (event.target.tagName.toLowerCase() !== 'textarea') return;
    if (!event.target.classList.contains("auto-expand")) return;
    autoExpandTextarea(event.target);
  }, false);
  ]]);
}