qb64/internal/help/OR_(boolean).txt

The '''OR''' conditional operator evaluates an expression to true (-1) if any of the arguments is also true.


{{PageSyntax}}
: [[IF]] {{Parameter|expression1}} '''OR''' {{Parameter|expression2}} THEN {code}


{{PageDescription}}
* OR adds an alternative to another conditional evaluation. If either element in the evaluation is true then the evaluation is true.
* Parenthesis may be used to clarify the order of comparisons in an evaluation.
* Not to be confused with the [[AND]] and [[OR]] numerical operations.


{{Template:RelationalTable}}


{{PageExamples}}
''Example:'' 
{{CodeStart}}
a% = 100
b% = 50

IF (a% > b% AND a% < 100) OR b% = 50 THEN PRINT "True"
{{CodeEnd}}
{{OutputStart}}
True
{{OutputEnd}}
: ''Explanation:'' The first evaluation was False, but the OR evaluation made the statement true and the code was executed.


{{PageSeeAlso}}
* [[AND]], [[OR]] {{text|(logical operators)}}
* [[AND (boolean)]], [[XOR (boolean)]]
* [[IF...THEN]]


{{PageNavigation}}