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URL: http://developer.mozilla.org/ko/docs/Web/JavaScript/Reference/Operators/Left_shift_assignment

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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 2015년 7월.

왼쪽 시프트 할당 (<<=) 연산자는 지정된 비트 수 만큼 왼쪽으로 비트를 이동시키고 그 결과를 변수에 반영합니다.

시도해 보기

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
ECMAScript® 2027 Language Specification
# sec-assignment-operators

브라우저 호환성

같이 보기

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