jquery不支持toggle() jquery不支持toggle()高(新)版本的问题解决

/**
 * Replacement for toggle
 */
jQuery.fn.toggle = function( fn, fn2 ) {
 // Don't mess with animation or css toggles
 if ( !jQuery.isFunction( fn ) || !jQuery.isFunction( fn2 ) ) {
 return oldToggle.apply( this, arguments );
 }
 // Save reference to arguments for access in closure
 var args = arguments,
 guid = fn.guid || jQuery.guid++,
 i = 0,
 toggler = function( event ) {
  // Figure out which function to execute
  var lastToggle = ( jQuery._data( this, "lastToggle" + fn.guid ) || 0 ) % i;
  jQuery._data( this, "lastToggle" + fn.guid, lastToggle + 1 );
  // Make sure that clicks stop
  event.preventDefault();
  // and execute the function
  return args[ lastToggle ].apply( this, arguments ) || false;
 };
 // link all the functions, so any of them can unbind this click handler
 toggler.guid = guid;
 while ( i < args.length ) {
 args[ i++ ].guid = guid;
 }
 return this.click( toggler );
};