Question

I wrote a quick and dirty logger as a jQuery plugin…

(function($){   
    $.log = function(debug) {       
        if (console.debug) {            
            console.debug(debug);           
        };      
    };
})(jQuery);

It works fine in Firefox, but in IE7, I’m getting the error…

console.debug is null or not an object

How do I perform a function exists in JavaScript that’s compatible with IE7?

Answer 1

console.debug is specific to Firebug, which runs under Firefox.

You need to check if window.console is available before checking for console.log!

Here’s your code reworked with no errors:

(function($){
    $.log = function(debug) {
        if (window.console && console.debug) {
                console.debug(debug);
        };
    };
})(jQuery);