Reload Page if [Java]Script Changes

reloadPageIfScriptChanges.js

// NOTE: depends on jQuery and hex_md5 function @ http://pajhome.org.uk/crypt/md5/
function reloadPageIfScriptChanges(patterns, pollInterval) {
	patterns = $.isArray(patterns) ? patterns : [patterns];
	$.ajaxSetup({ cache: false });
	var digests = {};
	setInterval(function() {

		$('script[src]').each(function() {
			var src = $(this).attr('src');
			
			if( $.grep(patterns, function(p) {
				return p.test(src);
			}).length == 0) {
				return;
			}
			
			$.get(src, function(data) {
				console.log('checking ' + src);
				var md5 = hex_md5(data);
				if ( (typeof digests[src] === 'undefined') ) {
					digests[src] = md5;
					console.log('assign');
				} else if (digests[src] !== md5) {
					console.log(src + ' changed.  reloading page');
					location.href = location.href;
				}
			});
			$('body').html(mydata.name);	
		});

	}, pollInterval);			
}

reloadPageIfScriptChanges(/data\.js/, 1000);