How do I use alert() for a long debug message?

I'm trying to alert() the properties of the javascript object. Since the text in alert isn't scrollable, I can see only part of it. How do I fix this开发者_开发技巧? I'm using FF 3.5.

Install Firebug and use console.log(myObj);

You can inspect the object properly in this way!

You can split the text into many pieces and alert many different times.
Or, you can make a textArea on the page and set the innerHTML of the textarea to your output message [what I do] Note that if you want to do that, you have to replace \n with <br />

In chrome, sometimes the "okay" button of the alert doesn't even show >_>

Have a look at Blackbird. It's an onscreen javascript logger/debugger. In you code you would place log.debug(object) and it will be output to the browser in a div overlay. I don't know if it works if you just pass it an object, but apparently you already have the object.dumpvars() already worked out.

Use a cross-browser logging library such as my own log4javascript. Among many other things, it has a searchable, filterable logging console and allows you to dump objects to the console using logging calls:

var obj = {
    name: "Octopus",
    tentacles: 8
};

log.debug(obj);

/*
   Displays:

   19:53:17 INFO  - {
     name: Octopus,
     tentacles: 8
   }
*/