src/grid/component.js
function isShiftKeyOnly(event) {
  return (
    !event.altKey &&
      !(event.metaKey || event.ctrlKey) &&
      event.shiftKey);
}
function isShiftKeyOnly(event) {
  return (
    !event.altKey &&
      !(event.metaKey || event.ctrlKey) &&
      event.shiftKey);
}
function isShiftKeyOnly ( event ) { return ( ! event . altKey && ! ( event . metaKey || event . ctrlKey ) && event . shiftKey ) ; }
Same as `ol.events.condition.shiftKeyOnly`.
@param {JQueryEventObject} event Event.
@return {boolean} True if only the shift key is pressed.
@private
Same as ol . events . condition . shiftKeyOnly .