Open a project in Brackets, place your cursor before a function definition, and select ```Annotate``` form the ```Edit``` menu.
This will create a JSDoc like annotation according to the function signature. It will add ```@private``` if the function starts with an underscore. It will create a ```@param``` for each parameter.
Known issues
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Annotations are not correctly indented.
It will only work with function declared with the form ```function name ([parameters]) {}```.
No ```@return``` is generated since the extension only looks at the function signature to generate the annotation, not its body.