EXISTS method verifies that a subscript exists in a collection.
TRUE if the subscript exists. If the subscript doesn't exist,
The method takes a single argument: the
subscript that you are testing for. The syntax is:
collection is the name of the collection.
subscript is the value that you are testing for. If you specify a value of
This example verifies that subscript number
10 exists in the associative array:
Some collection methods raise an exception if you call them with a subscript that doesn't exist in the specified collection. Rather than raising an error, the
EXISTS method returns a value of