거듭제곱 할당 (**=)
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.
거듭제곱 할당 연산자(**=
)는 오른쪽 피연산자의 값으로 변수를 거듭제곱한 결과를 다시 변수에 할당합니다.
시도해보기
let a = 3;
console.log((a **= 2));
// Expected output: 9
console.log((a **= 0));
// Expected output: 1
console.log((a **= "hello"));
// Expected output: NaN
구문
js
x **= y; // x = x ** y
예제
거듭제곱 할당 사용하기
js
// bar = 5
// 위와 같은 변수를 가정할 때
bar **= 2; // 25
bar **= "foo"; // NaN
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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Exponentiation 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.