Function addEnterHandler

src/js/utils.js:108–118

(element, handler)

  },

  addEnterHandler(element, handler) {
    element.addEventListener("click", (e) => {
      handler(e);
    });
    element.addEventListener("keydown", (e) => {
      if (e.keyCode === 13) {
        e.preventDefault();
        handler(e);
      }
    });
  },

  addEnterOnlyHandler(element, handler) {
    element.addEventListener("keydown", (e) => {