springuper

Step 0:

Get Homebrew installed on your mac if you don't already have it

Step 1:

Install highlight. "brew install highlight". (This brings down Lua and Boost as well)

Step 2:

springuper

/* 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();