JavaScript Firebug Console Logging on Production

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This JavaScript snippet adds console.* functions to the page. Functions like console.log() will not fail even without debugging support. For example, some older versions of Internet Explorer will throw an error if you use a console.log(). Add this script to the top of you script and you will not need to remove any `console' functions.

(function() {     try {         console.log( '' );     }     catch ( e ) {         window.console = {};           var names = [             'log',             'debug',             'info',             'warn',             'error',             'assert',             'clear',             'dir',             'dirxml',             'trace',             'group',             'groupCollapsed',             'groupEnd',             'time',             'timeEnd',             'timeStamp',             'profile',             'profileEnd',             'count',             'exception',             'table'         ];           for (var i = 0; i < names.length; ++i) {             window.console[ names[ i ] ] = function() {};         }     } })();

The available console functions for Firebug:

console.log(object[, object, ...]) console.debug(object[, object, ...]) console.info(object[, object, ...]) console.warn(object[, object, ...]) console.error(object[, object, ...]) console.assert(expression[, object, ...]) console.clear() console.dir(object) console.dirxml(node) console.trace() console.group(object[, object, ...]) console.groupCollapsed(object[, object, ...]) console.groupEnd() console.time(name) console.timeEnd(name) console.timeStamp(name) console.profile([title]) console.profileEnd() console.count([title]) console.exception(error-object[, object, ...]) console.table(data[, columns])

More about Firebug, the Command Line and the Console API

http://getfirebug.com/commandline

http://getfirebug.com/wiki/index.php/Console_API

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Comments (RSS)

  1. anonymous

    (function ( win ) {

        var method;

        var dummy = function() {};

        var methods = ('assert,count,debug,dir,dirxml,error,exception,group,' +

            'groupCollapsed,groupEnd,info,log,markTimeline,profile,profileEnd,' +

            'time,timeEnd,trace,warn').split(',');

        while ( method = methods.pop() ) {

             win[ method ] = win[ method ] || dummy;

        }

    })( window.console = window.console || {} );