JScript &= Operator (JScript &'equals' Operator)

JScript &= Operator

Used to perform a bitwise AND on an expression

Syntax: JScript &= Operator

result &= expression

Arguments: JScript &= Operator

result

Any variable.

expression

Any expression.

Remarks: JScript &= Operator

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 result and expression have a 1 in a digit, result will have a 1 in that digit, otherwise result will have a 0 in that digit.

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