Simple console polyfill -- does nothing if console is not defined.

console.polyfill.js

window.console = window.console || (function() {
    var empty = function () {},
        functions = "log info warn error assert dir clear profile profileEnd".split(" "), 
        ff = 0, 
        fun = null, 
        return_obj = {};
    for(ff = 0; fun = functions[ff]; ff += 1) {
        return_obj[fun] = empty
    }
    return return_obj
}());