originalTypeEvent !== 'string' || !element) {\n    return\n  }\n\n  let [isDelegated, callable, typeEvent] = normalizeParameters(originalTypeEvent, handler, delegationFunction)\n\n  // in case of mouseenter or mouseleave wrap the handler within a function that checks for its DOM position\n  // this prevents the handler from being dispatched the same way as mouseover or mouseout does\n  if (originalTypeEvent in customEvents) {\n    const wrapFunction = fn => {\n      return function (event) {\n        if (!event.relatedTarget...

in his throat,' said the Gryphon:  and it set to work shaking him
and punching him in the back.  At last the Mock Turtle recovered
his voice, and, with tears running down his cheeks, he went on
again:--

  `You may not have lived much under the sea--' (`I haven't,' said Alice)--
`and perhaps you were never even introduced to a lobster--'