Height Equalizer – new Equializer('.elements') will keep all elements the same height

equalizer.coffee

class @Equalizer
  constructor: (selector) ->
    @init $(selector)

  init: ($collection)->
    @attachTo($collection) if $collection.length

  attachTo: ($collection) ->
    @collection = $collection
    @setTimeoutFunction(@equalizeHeight, @collection)

  setTimeoutFunction: (fn, param) ->
    $(window).resize ->
      clearTimeout a
      a = setTimeout((->
        fn(param)
      ), 50)
    fn(param)

  equalizeHeight: (collection)->
    max = -Infinity
    collection.height ''
    collection.each ->
      h = $(@).height()
      max = h if h > max
    collection.height max + 'px'

equalizer.js

(function() {
  this.Equalizer = (function() {
    function Equalizer(selector) {
      this.init($(selector));
    }

    Equalizer.prototype.init = function($collection) {
      if ($collection.length) {
        return this.attachTo($collection);
      }
    };

    Equalizer.prototype.attachTo = function($collection) {
      this.collection = $collection;
      return this.setTimeoutFunction(this.equalizeHeight, this.collection);
    };

    Equalizer.prototype.setTimeoutFunction = function(fn, param) {
      $(window).resize(function() {
        var a;
        clearTimeout(a);
        return a = setTimeout((function() {
          return fn(param);
        }), 50);
      });
      return fn(param);
    };

    Equalizer.prototype.equalizeHeight = function(collection) {
      var max;
      max = -Infinity;
      collection.height('');
      collection.each(function() {
        var h;
        h = $(this).height();
        if (h > max) {
          return max = h;
        }
      });
      return collection.height(max + 'px');
    };

    return Equalizer;

  })();

}).call(this);