How can I make log4js print objects like console.log does

Question

I have a project that has JavaScript in 2 places. One is using node.js on the server-side while the other is obviously the browser JavaScript. I am required to support any browser and I'd like to have a single logging framework for all of them. I picked log4js which works great for logging strings but for objects it has a bit of difficulty.

In node when I do Logger.debug(someObject); I get a beautiful printout of the object. When I try to do this with my browser JavaScript I get [object Object] which is useless.

Anyone know how to do this?

(node is using the terminal as the output console and the browser JavaScript is using the Browser's (Chrome) Console)

Answer 1

log4js is still pretty young in terms of development. I would modify the source code around line 1795 in "doAppend"

if(typeof(loggingEvent.message) === 'object')
    return window.console.log(loggingEvent.level.levelStr + " - %o", loggingEvent.message);