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Microsoft® JScript®
|| Operator
 Language Reference 
Version 1 

See Also


Description
Performs a logical disjunction on two expressions.
Syntax
result = expression1 || expression2

The || operator syntax has these parts:

Part Description
result Any variable.
expression1 Any expression.
expression2 Any expression.

Remarks
If either or both expressions evaluate to True, result is True. The following table illustrates how result is determined:

If expression1 is And expression2 is The result is
True True True
True False True
False True True
False False False

For information on when a run-time error is generated by the && operator, see the Operator Behavior table.

JavaScript uses the following rules for converting non-Boolean values to Boolean values:


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