Microsoft® JScript
& Operator

See Also

Language Reference 

Description
Used to perform a bitwise AND 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

The & operator looks at the binary representation of the values of two expressions and does a bitwise AND operation on them. The result of this operation behaves as follows:


0101    (expression1)
1100    (expression2)
----
0100    (result)

Any time both of the expressions have a 1 in a digit, the result will have a 1 in that digit. Otherwise, the result will have a 0 in that digit.

For information on when a run-time error is generated by the & operator, please see the Bitwise Operators table.


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