Documentation:OCLOperators notEmpty: Difference between revisions

OCLOperators notEmpty

Latest revision as of 05:56, 11 February 2025

This page was created by Alexandra on 2017-08-13. Last edited by Stephanie@mdriven.net on 2025-02-11.

notEmpty () : Boolean

Returns true if self contains at least one element - otherwise, returns false.

Expression	Result
Sequence{2, 'a'}->notEmpty()	true
Sequence{null}->notEmpty()	true
Sequence{}->notEmpty()	false

Warning!

Never use ->notEmpty on a value type. The value will be converted to a list (with the value as its only item) and that will always evaluate to True.

See also: OCLOperators isEmpty

@@ Line 1: / Line 1: @@
-Returns true of the collection is not empty
+<message>Write the content here to display this box</message>
-[[Category:OCLOperators]]
+=== notEmpty () : Boolean ===
+Returns true if ''self'' contains at least one element - otherwise, returns false.
+{| class="wikitable"
+!Expression
+!Result
+|-
+|Sequence{2, 'a'}->notEmpty()
+|true
+|-
+|Sequence{null}->notEmpty()
+|true
+|-
+|Sequence{}->notEmpty()
+|false
+|}
+===== Warning! =====
+''Never'' use ->notEmpty on a value type. The value will be converted to a list (with the value as its only item) and that will always evaluate to True.
+'''See also:''' [[Documentation:OCLOperators isEmpty|OCLOperators isEmpty]]
+[[Category:OCL Collection Operators]]
+{{Edited|July|12|2025}}