title: framework to performance test javascript
body: <p>I am currently implementing a module observer pattern to a large scale web application that has a large dependency on javascript. I have introduced unit testing of each of the modules which I find very beneficial in capturing any issues with my javascript.</p>
  
  <p>I would now also like to look at the possibility of performance testing my javascript. Are there any frameworks available where I can set up performance test for my javascript files?</p>