whole_func_string: function val(node, _val2) {
              if (node && node.el) {
                  var el = node.el;
                  if (_val2 !== undefined) {
                      el.value = _val2;
                  } else {
                      return el.value;
                  }
              }
          }
func_code_string: function val(node, _val2) {
              if (node && node.el) {
                  var el = node.el;
                  if (_val2 !== undefined) {
                      el.value = _val2;
                  } else {
                      return el.value;
                  }
              }
          }
func_documentation_string: Setting, Getting value to input element  @method val @param {dom.Element} node @param? {String} val @return {String}