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[ Lasso_TagExists ]


[Lasso_TagExists] returns True if the specified type, trait or method is currently defined or False otherwise.

  • Syntax
  • Beginner

To check whether a tag exists before calling it:

Use the [Lasso_TagExists] method to check that it has been defined. The following example checks that the [NSLookup] method is defined before calling it.


Lasso_TagExists('NSLookup') ? NSLookup('')


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