Javascript debugging - Show variables in use

Is there any way I can view the variables used in a javascript function without trawling through the code?

Using javascript on a server so cant really install an app to debug, is there a javascript function i can use in s开发者_运维问答ome way?

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Not unless the JavaScript implementation you're using has some extension that provides such a feature (browsers don't). JavaScript resolves identifiers inside a function using the scope chain; there's no single object that contains all the variables in scope, and the objects in the scope chain are inaccessible from code.