Set.prototype.clear()

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.

Set 인스턴스의 clear() 메서드는 이 Set의 모든 요소를 삭제합니다.

시도해보기

const set1 = new Set();
set1.add(1);
set1.add("foo");

console.log(set1.size);
// Expected output: 2

set1.clear();

console.log(set1.size);
// Expected output: 0

구문

js
clear()

매개변수

없음.

반환 값

없음 (undefined).

예제

clear() 사용하기

js
const mySet = new Set();
mySet.add(1);
mySet.add("foo");

console.log(mySet.size); // 2
console.log(mySet.has("foo")); // true

mySet.clear();

console.log(mySet.size); // 0
console.log(mySet.has("foo")); // false

명세서

Specification
ECMAScript® 2025 Language Specification
# sec-set.prototype.clear

브라우저 호환성

Report problems with this compatibility data on GitHub
desktopmobileserver
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
clear

Legend

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Full support
Full support

같이 보기