Accessing specific attribute from V.Value

Hi

I am new to Lightning Component development.
I have a method in my controller.js for validation check.

validateEmptyField : function(component) {
        var cmpValue = component.get("v.value");
        if ($A.util.isEmpty(cmpValue) || $A.util.isUndefined(cmpValue)){
            component.set("v.errors", [{message:"Field cannot be empty. Please enter valid data."}]);
            return false;
        }
        
        return true;
    }

I do have like 8 attributes for the v.value.
How can I make 7 attributes to have this validation check and not for one field?

I need to extract that field from cmpValue, but I am not sure which default method to call.

Thanks

March 14, 2017
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