Javascript log function

Prevent errors on console methods when no console present and expose a global 'log' function.

HTML

Press 'Run' and check your console!
<hr />
Source at: <a href='https://gist.github.com/bgrins/5108712'>https://gist.github.com/bgrins/5108712</a>

JavaScript

var logr = {};

// Full version of `log` that:
//  * Prevents errors on console methods when no console present.
//  * Exposes a global 'log' function that preserves line numbering and formatting.
(function () {
  var method;
  var noop = function () { };
  var methods = [
      'assert', 'clear', 'count', 'debug', 'dir', 'dirxml', 'error',
      'exception', 'group', 'groupCollapsed', 'groupEnd', 'info', 'log',
      'markTimeline', 'profile', 'profileEnd', 'table', 'time', 'timeEnd',
      'timeStamp', 'trace', 'warn'
  ];
  var length = methods.length;
  var console = (window.console = window.console || {});

  while (length--) {
    method = methods[length];

    // Only stub undefined methods.
    if (!console[method]) {
        console[method] = noop;
    }
  }


  if (Function.prototype.bind) {
    window.log = Function.prototype.bind.call(console.log, console);
  }
  else {
    window.log = function() { 
      Function.prototype.apply.call(console.log, console, arguments);
    };
  }
  logr.log = Function.prototype.bind.call(function() { 
      var args = ['ADVISED'].concat(Array.prototype.slice.call(arguments))
      Function.prototype.apply.call(console.log, console, args);
    }, console);
    console.logr = Function.prototype.bind.call(function() { 
      var args = ['ADVISED'].concat(Array.prototype.slice.call(arguments))
      Function.prototype.apply.call(console.log, console, args);
    }, console);
    
})();


function Test() {}
Test.prototype.extraMethod = function() { }
Test.methodAttachedToFunction = function(withParam) { }

  log("A single string");
  log(123);
  log(["An", "Array", "Of", "Strings"]);
  log("The %s jumped over %d tall buildings", "person", 100);
  log("The", "person", "jumped over ", 100, " tall buildings");
  log("The object %o is inspectable!", { person: { jumpedOver: [100, "tall buildings"]}});
  log('%cThis is red text on a green background', 'color:red; background-color:green');
  log({ an: "obj", withNested: { objects:...