// [di]base 0.2
(function (cmds) {
	'use strict';
	if (typeof window.di === 'undefined') { window.di = {}; }; di.con = {}; var noop = function () { }; di.usecon = typeof console !== 'undefined';
	var cl = cmds.length; for (var i = 0; i < cl; i++) { var c = cmds[i];
		(function (c) { di.con[c] = di.usecon ? function () { if (di.usecon && typeof console !== 'undefined' && typeof console[c] == 'function') { return console[c].apply(console, arguments); } } : noop })(c);
	};
})('log debug info warn error assert clear dir dirxml trace group groupCollapsed groupEnd time timeEnd profile profileEnd count exception table'.split(' '));

(function (cmds) {
	'use strict';
	if (typeof window.di === 'undefined') { window.di = {}; }; di.con = {}; var noop = function () { }; di.usecon = typeof console !== 'undefined';
	var cl = cmds.length; for (var i = 0; i < cl; i++) { var c = cmds[i];
		(function (c) { di.con[c] = di.usecon ? function () { if (di.usecon && typeof console !== 'undefined' && console[c]) { return console[c].apply(console, arguments); } } : noop })(c);
	};
})('log debug info warn error assert clear dir dirxml trace group groupCollapsed groupEnd time timeEnd profile profileEnd count exception table'.split(' '));

--- 
+++ 
@@ -1,7 +1,8 @@
+// [di]base 0.2
 (function (cmds) {
 	'use strict';
 	if (typeof window.di === 'undefined') { window.di = {}; }; di.con = {}; var noop = function () { }; di.usecon = typeof console !== 'undefined';
 	var cl = cmds.length; for (var i = 0; i < cl; i++) { var c = cmds[i];
-		(function (c) { di.con[c] = di.usecon ? function () { if (di.usecon && typeof console !== 'undefined' && console[c]) { return console[c].apply(console, arguments); } } : noop })(c);
+		(function (c) { di.con[c] = di.usecon ? function () { if (di.usecon && typeof console !== 'undefined' && typeof console[c] == 'function') { return console[c].apply(console, arguments); } } : noop })(c);
 	};
 })('log debug info warn error assert clear dir dirxml trace group groupCollapsed groupEnd time timeEnd profile profileEnd count exception table'.split(' '));
Check whether console[c] is actually a function
