Make it safe to use console.log always. How to convert to coffeescript?

gistfile1.js

// usage: log('inside coolFunc', this, arguments);
// paulirish.com/2009/log-a-lightweight-wrapper-for-consolelog/
window.log = function(){
  log.history = log.history || [];   // store logs to an array for reference
  log.history.push(arguments);
  if(this.console) {
      arguments.callee = arguments.callee.caller;
      console.log( Array.prototype.slice.call(arguments) );
  }
};

// make it safe to use console.log always
(function(b){function c(){}for(var d="assert,count,debug,dir,dirxml,error,exception,group,groupCollapsed,groupEnd,info,log,markTimeline,profile,profileEnd,time,timeEnd,trace,warn".split(","),a;a=d.pop();)b[a]=b[a]||c})(window.console=window.console||{});

gistfile2.coffee

window.log = ->
  log.history = log.history or []
  log.history.push arguments
  if @console
    arguments.callee = arguments.callee.caller
    console.log Array::slice.call(arguments)

((b) ->
  c = ->
  d = "assert,count,debug,dir,dirxml,error,exception,group,groupCollapsed,groupEnd,info,log,markTimeline,profile,profileEnd,time,timeEnd,trace,warn".split(",")
  while a = d.pop()
    b[a] = b[a] or c
) window.console = window.console or {}

Found the solution using http://ricostacruz.com/js2coffee/