defined

Syntax defined (value)
Params value is a database object whose existence you wish to confirm.
Action Determines whether the object exists.
Returns True if the object exists, false otherwise
Examples defined (examples.testText)

   » true // It's there

local (s = "testText");
defined (examples.[s])

   » true // An item named testText is in the examples table.

defined (examples[99])

   » false // There aren't 99 items in the examples table.
Notes This verb is useful to validate an address or to see if an object exists before attempting to operate on it.

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