비트 AND 할당 연산 (&=)

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

비트 AND 할당 (&=) 연산자는 두 피연산자의 이진 표현을 사용하고, 피연산자에 대한 AND 비트 연산 수행 결과를 변수에 할당합니다.

시도해보기

let a = 5; // 00000000000000000000000000000101
a &= 3; // 00000000000000000000000000000011

console.log(a); // 00000000000000000000000000000001
// Expected output: 1

구문

js
x &= y // x = x & y

예제

비트 AND 할당 연산 사용하기

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

명세서

Specification
ECMAScript® 2025 Language Specification
# sec-assignment-operators

브라우저 호환성

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Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
Bitwise AND assignment (x &= y)

Legend

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Full support
Full support

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