왼쪽 시프트 할당 연산자 (<<=)
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.
왼쪽 시프트 할당 (<<=
) 연산자는 지정된 비트 수 만큼 왼쪽으로 비트를 이동시키고 그 결과를 변수에 반영합니다.
시도해보기
let a = 5; // 00000000000000000000000000000101
a <<= 2; // 00000000000000000000000000010100
console.log(a);
// Expected output: 20
구문
js
x <<= y // x = x << y
예제
왼쪽 시프트 할당하기
js
let a = 5;
// 00000000000000000000000000000101
a <<= 2; // 20
// 00000000000000000000000000010100
명세
Specification |
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ECMAScript® 2025 Language Specification # sec-assignment-operators |
브라우저 호환성
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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Left shift assignment ( x <<= y ) |
Legend
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- Full support
- Full support
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.