jQuery match height plugin

matchHeight.js

(function ( $ ) { //inline jQuery plugin to match height of elements
    $.fn.match_height = function(userOptions, callback) {
    	var defaults = {
    		mode:'maximum'
    	};
    	var options = $.extend({}, defaults, userOptions);
		if(options.mode == 'maximum') {
			var height=0;
		} else {
			var height = this.first().height();
		}
		this.each(function() {
			if(options.mode == 'maximum') {
				if($(this).height() > height) {
					height = $(this).height();
				}	
			} else if(options.mode == 'minimum') {
				if($(this).height() < height) {
					height = $(this).height();
				}
			}
		});
		this.each(function() {
			$(this).height(height);
		});
		if(typeof callback == 'function') {
			callback.call(this);
		}
		return height;
	};
}( jQuery ));

//match the height of all cols in rows (bootstrap)
$('.row').each(function() {
  $(this).find('div[class^="col-"]').match_height();
});