tablesorter/js/parsers/parser-date.js

/*!
 * Extract dates using popular natural language date parsers
 * 10/26/2014 (v2.18.0)
 */
/*jshint jquery:true */
;(function($){
"use strict";

	/*! Sugar (http://sugarjs.com/dates#comparing_dates)
	* demo: http://jsfiddle.net/Mottie/abkNM/4163/
	*/
	$.tablesorter.addParser({
		id: "sugar",
		is: function() {
			return false;
		},
		format: function(s) {
			var date = Date.create ? Date.create(s) : s ? new Date(s) : s;
			return date instanceof Date && isFinite(date) ? date.getTime() : s;
		},
		type: "numeric"
	});

	/*! Datejs (http://www.datejs.com/)
	* demo: http://jsfiddle.net/Mottie/abkNM/4164/
	*/
	$.tablesorter.addParser({
		id: "datejs",
		is: function() {
			return false;
		},
		format: function(s) {
			var date = Date.parse ? Date.parse(s) : s ? new Date(s) : s;
			return date instanceof Date && isFinite(date) ? date.getTime() : s;
		},
		type: "numeric"
	});

})(jQuery);