for paul

console-args-test.js

// Console arguments testing

var apc = [].slice;

(function(){
  console.log( apc.call(arguments) );
})( "false", 1, undefined, null, ["foo","bar","baz"], {a:1,b:2}, false );

(function(){
  console.log.call( console, apc.call(arguments) );
})( "false", 1, undefined, null, ["foo","bar","baz"], {a:1,b:2}, false );

(function(){
  console.log.apply( console, apc.call(arguments) );
})( "false", 1, undefined, null, ["foo","bar","baz"], {a:1,b:2}, false );

console.log( "false", 1, undefined, null, ["foo","bar","baz"], {a:1,b:2}, false );

Chrome 5 inspector output:

Note that by default (the bottom two), since strings don't have " around them, "false" and false appear to be the same. This is why I coded JavaScript Debug to not apply arguments in WebKit (the top two).

IE doesnt handle console.log.apply/call at all, so my these have the middle two examples removed..

IE8 dev tools:

IE9 dev tools:

Firefox 3.5.10 with firebug 1.6X:

At least Firebug colors booleans and strings differently in the "plain ol' arguments" logging mode, but it's still too subtle!