Syntax | aVariable.exists() | |
---|---|---|
Semantics | Returns true if aVariable is not null, otherwise false. See chapter NULL Values to read more about null values. | |
Substitutables | aVariable | Can be a variable or an attribute of an object. |
Examples | set b1 = x.exists(); set b2 = myObject.myAttr.exists(); Assigns the boolean return value of operation |
Overview
Content Tools