console.log.apply not working in IE9

Question

Looks like I\'ve re-invented the wheel, but somehow this isn\'t working in Internet Explorer 9, but does in IE6.

function debug()
  if(!window.console) { 
           


        

Answer 1

The reason I came to this question was that I as trying to 'spicy' the console.log function for a specific module, so I'd have more localized and insightful debug info by playing a bit with the arguments, IE 9 broke it.

@Andy E answer is great and helped me with lots of insight about apply. I just don't take the same approach to support IE9, so my solution is running the console only on "modern browsers" (being that modern means whatever browsers that behave the way I expect =)

var C = function() {
  var args = Array.prototype.slice.call(arguments);
  var console = window.console;
  args[0]  = "Module X: "+args[0];
  if( typeof console == 'object' && console.log && console.log.apply ){
    console.log.apply(console, args);
  }
};