Bitwise AND assignment (&=)

The bitwise AND assignment operator (&=) uses the binary representation of both operands, does a bitwise AND operation on them and assigns the result to the variable.

Syntax

x &= y // x = x & y

Examples

Using bitwise AND assignment

let a = 5;
// 5:     00000000000000000000000000000101
// 2:     00000000000000000000000000000010
a &= 2; // 0

Specifications

Browser compatibility

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Bitwise_AND_assignment
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12
1
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3
1
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18
4
10.1
1
1.0

See also

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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_AND_assignment