average response time by domain

gistfile1.txt

;(function(domains)
{
 var entries = window.performance.getEntries();
 var result = {
     total: 0, 
     count: 0, 
     domains: {}
   };

 for (var entry = 0; entry < entries.length; entry++)
 {
   var split = entries[entry].name.split("://");
   var resourceName = split[split.length - 1];

   for (var domain = 0; domain < domains.length; domain++)
   {
     if (resourceName.indexOf(domains[domain]) === 0)
     {
       result.count++;
       result.total += entries[entry].duration;

       result.domains[domains[domain]] = result.domains[domains[domain]] || 
         {
           total: 0, 
           count: 0
         };
       result.domains[domains[domain]].count++;
       result.domains[domains[domain]].total += entries[entry].duration;
     }
   }
 }

 function calcAverage(o)
 {
   o.average = o.total / o.count;
 }

 calcAverage(result);
 console.log("average:" + result.average);

 for (var domainName in result.domains)
 {
   calcAverage(result.domains[domainName]);
   console.log(domainName + ":" + result.domains[domainName].average);
 }

})(["www.soasta.com", "platform.twitter.com"]);