https://www.holyoke.org/wp-content/plugins/wp-proud-core/modules/p…/jquery.equalizeHeight.js?ver=7.1

1(function($) {
2  // Function normalizes height
3  // looks for [data-equalizer], and equals 
4  // height for all [data-equalize-height] children
5  // 
6  // var mq (optional)
7  //     mq = a media query, test for true 
8  //     mq = null, then run resize for all windows
9  $.fn.equalizeHeight = (function(mq, childrenSel) {
10
11      var self      = this,
12          $children = [],
13          childrenSel = childrenSel || '[data-equalize-height]',
14          mq = mq || false;
15
16      self.init = function() {
17          $children = $(this).find(childrenSel);
18          if($children.length) {
19              self.equalize(true);
20              self.setWatch();
21          }
22      }
23
24      self.reset = function() {
25          $.each($children, function (index, element) {
26              $(element).css("height", "");
27          });
28      }
29
30      self.runCalc = function() {
31        var largestHeight = 0;
32        if(  !mq || window.matchMedia(mq).matches ) {
33            $.each($children, function (index, element) {
34                var thisHeight = $(element).outerHeight();
35                if (thisHeight > largestHeight) {
36                    largestHeight = thisHeight;
37                }
38            });
39        }
40        $.each($children, function(index, element) {
41            $(element).css({ 'height': largestHeight + "px" });
42        });
43      }
44
45      self.equalize = function(firstCall) {
46          if(firstCall) {
47              $(self).waitForImages({
48                  finished: function() {
49                      self.runCalc();
50                  },
51                  each: $.noop,
52                  waitForAll: true
53              });
54          }
55          else {
56              self.reset();
57              self.runCalc();
58          }
59            
60      }
61
62      // Description:
63      //    Executes a function a max of once every n milliseconds
64      self.throttle = function (func, delay) {
65          var timer = null;
66
67          return function () {
68              var context = this, args = arguments;
69
70              if (timer == null) {
71                timer = setTimeout(function () {
72                  func.apply(context, args);
73                  timer = null;
74                }, delay);
75              }
76          };
77      }
78
79      self.setWatch = function() {
80          // Set watch
81          $(window).on('resize.equalizer', self.throttle(function () {
82              self.equalize();
83          }, 50));
84      }
85
86      return self.init();
87  });
88})(jQuery);