IsNull() vs. IsDefined() For ColdFusion 9 Scope Detection

(Ben Nadel) I just spent an hour trying to debug a ColdFusion 9 problem when I realized that the root of the problem was the fact that ColdFusion 9’s new IsNull() method and the previously existing IsDefined() method work very differently for scope detection. While the built-in ColdFusion scopes mig

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