gistfile1.js

define([
    'jquery',
    'underscore'
], function ($, _) {
    "use strict";

    return {
        onRender: function () {
            var column = this.$el.parents('.column');
            var debounceResize = _.debounce(this.resize, 100);

            $(window).resize(_.bind(debounceResize, this));
            $(window).trigger('resize');
        },
        onClose: function () {
            $(window).unbind('resize');
        },
        resize: function () {
            var column = this.$el.parents('.column');
            var viewTop = this.$el.position().top;
            var tertiaryNavTop = column.find('.tertiary').position().top;
            var adjustedHeight = tertiaryNavTop - viewTop;

            this.$el.height(adjustedHeight);
        }
    };
});