paulirish

/*              __
               / _)         
        .-^^^-/ /          
    __/       /              
    <__.|_|-|_|              
*/


   /*_/| 
   =0-0=

simonw

/* Use this to cause a function to fire no more than once every 'ms' milliseconds.
   For example, an expensive mousemove handler:
   
   $('body').mouseover(ratelimit(function(ev) {
      // ...
   }, 250));
*/

function ratelimit(fn, ms) {
    var last = (new Date()).getTime();