https://butterfly-conservation.org/themes/custom/hsb/js/contrib_plugins.js?v=0.x

1/*
2 * debouncedresize: special jQuery event that happens once after a window resize
3 *
4 * latest version and complete README available on Github:
5 * https://github.com/louisremi/jquery-smartresize
6 *
7 * Copyright 2012 @louis_remi
8 * Licensed under the MIT license.
9 *
10 * This saved you an hour of work?
11 * Send me music http://www.amazon.co.uk/wishlist/HNTU0468LQON
12 */
13
14(function($) {
15
16  var $event = $.event,
17    $special,
18    resizeTimeout;
19
20  $special = $event.special.debouncedresize = {
21    setup: function() {
22      $( this ).on( "resize", $special.handler );
23    },
24    teardown: function() {
25      $( this ).off( "resize", $special.handler );
26    },
27    handler: function( event, execAsap ) {
28      // Save the context
29      var context = this,
30        args = arguments,
31        dispatch = function() {
32          // set correct event type
33          event.type = "debouncedresize";
34          $event.dispatch.apply( context, args );
35        };
36
37      if ( resizeTimeout ) {
38        clearTimeout( resizeTimeout );
39      }
40
41      execAsap ?
42        dispatch() :
43        resizeTimeout = setTimeout( dispatch, $special.threshold );
44    },
45    threshold: 150
46  };
47
48})(jQuery);