is there an easy way to track a javascript variable with firefox?
I am looking开发者_Go百科 for an easy way to track the many changed of a variable in firefox.
I am looking for something that will not require me to add reduntant code, like alert, or console.log, but rather way to tell firefox to report each time a JS var is changed
am I dreaming?
firebug allows you to watch variables.
http://getfirebug.com/wiki/index.php/Script_Panel
You can add it to the "Watch" tab under the "Script" tab in Firebug. This will always show you the current value of a watched item, even if it's out of scope and null. Mix that in with break points and you can get what you want I think.
Additionally, console.log isn't redundant. You could set a global variable that would turn on the logs, something like:
if (debugging) {
console.log("var test is set at " + test);
}
That way they'd act more like trace points that you could trigger. For a bigger app this overhead pays for itself quite quickly.
It sounds like you are looking for Firebug. Check it out.
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