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Microsoft® JScript
&= Operator

See Also

Language Reference |

Description
Used to perform a bitwise AND on an expression.

Syntax
result &= expression

The &= operator syntax has these parts:

Part Description
result Any variable.
expression Any expression.

Remarks

Using this operator is exactly the same as specifying:


result = result & expression

The &= operator looks at the binary representation of the values of result and expression and does a bitwise AND operation on them. The output of this operation behaves like this:


0101    (result)
1100    (expression)
----
0100    (output)

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.


© 1996 by Microsoft Corporation.
file: /Techref/language/asp/js/141.htm, 2KB, , updated: 1996/11/22 11:11, local time: 2024/3/29 04:14,
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