JScript

Logical OR Operator (||)

Performs a logical disjunction on two expressions.

result = expression1 || expression2

Arguments

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

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

All objects are considered true.
Strings are considered false if and only if they are empty.
null and undefined are considered false.
Numbers are false if, and only if, they are 0.

Requirements

See Also

Operator Precedence | Operator Summary