This refreshes all the css on a page by changing the query string

refresh_css.js

/*
Add a bookmark to this

javascript:(function(){var c=document.getElementsByTagName("link");for(var d=0;d<c.length;d++){var a=c[d];if(a.rel=='stylesheet'||a.type=="text/css"){var e="css_buster_"+Math.floor(Math.random()*1000000000);var g=a.href.split("?",2);var f;if(g.length>1){var b=g[1].indexOf("&")==-1;if(b){f=e}else{f=g[1]+"&"+e}}else{f=e}a.href=g[0]+"?"+f}}})();
*/
(function() {
  var links = document.getElementsByTagName('link');
  for (var i = 0; i < links.length; i++) {
    var l = links[i];
    if (l.rel == 'stylesheet' || l.type == 'text/css') {
      var rand_n = 'css_buster_' + Math.floor(Math.random() * 1000000000);

      var splitted = l.href.split('?', 2);

      var new_query_string;

      // Does it already have a query string?
      if (splitted.length > 1) {
        // does it have params or just a cache buster
        var has_amp = splitted[1].indexOf('&') == -1; // is it a query string? 
        // if it's just a cache buster, swap it out
        if (has_amp) {
          new_query_string = rand_n;
        } else {
          new_query_string = splitted[1] + '&' + rand_n;
        }
      } else {
        new_query_string = rand_n;
      }

      l.href = splitted[0] + '?' + new_query_string;
    }
  }
})()

var splitted = l.href.split('?', 1); : splitted array limit is 1, so this condition can never happen : splitted.length > 1. or i am missing something ?

The second parameter to split specifies the limit of the number splits, not the limit of the returned array. (In other words, the returned array is one greater than the number of splits.)

I'm not sure i understand what you say. Actually i never used that parameter before. but here is what i got with Rhino :

js> "/style.css?foo".split('?', 0).length 
0
js> "/style.css?foo".split('?', 1).length
1
js> "/style.css?foo".split('?', 2).length
2
js> "/style.css?foo".split('?', 3).length
2

@jney Oh dang, you are indeed correct. I assumed the behavior was similar to python's .split. I guess JavaScript, Java, and Ruby is the number of elements max, whereas python is the number of splits max. Fixing code.