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  1. 개발자를 위한 웹 기술
  2. JavaScript
  3. JavaScript 참고서
  4. 표준 내장 객체
  5. WeakMap
  6. WeakMap.prototype.delete()
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WeakMap.prototype.delete()

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.

delete() 메서드는 WeakMap 객체에서 특정 요소를 제거합니다.

In this article

시도해 보기

const weakmap1 = new WeakMap(); const object1 = {}; weakmap1.set(object1, 42); console.log(weakmap1.delete(object1)); // Expected output: true console.log(weakmap1.has(object1)); // Expected output: false

구문

js
delete key;

매개변수

key

WeakMap 객체에서 제거할 요소의 키입니다.

반환 값

WeakMap 겍체의 요소가 성공적으로 제거된 경우 true입니다. WeakMap에서 키를 찾을 수 없거나 키가 객체가 아닌 경우는 false입니다.

예제

delete() 메서드 사용하기

js
const wm = new WeakMap(); wm.set(window, "foo"); wm.delete(window); // true 반환. 성공적으로 제거됨. wm.has(window); // false 반환. window 객체는 더이상 WeakMap에 있지않음.

명세

Specification
ECMAScript® 2027 Language Specification
# sec-weakmap.prototype.delete

브라우저 호환성

Enable JavaScript to view this browser compatibility table.

같이 보기

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This page was last modified on 2025년 2월 11일 by MDN contributors.

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  1. 표준 내장 객체
  2. WeakMap
  3. 생성자
    1. WeakMap() constructor
  4. 인스턴스 메서드
    1. WeakMap.prototype.delete()
    2. WeakMap.prototype.get()
    3. getOrInsert()
    4. getOrInsertComputed()
    5. WeakMap.prototype.has()
    6. WeakMap.prototype.set()
  5. 상속
  6. Object/Function
  7. 정적 메서드
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.toSource()
    5. Function.prototype[@@hasInstance]()
  8. 정적 속성
    1. Function: displayName
    2. Function.prototype.length
    3. Function: name
    4. Function
    5. Function.arguments
    6. Function.prototype.caller
  9. 인스턴스 메서드
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toString()
    10. Object.prototype.valueOf()
  10. 인스턴스 속성
    1. Object.prototype.__proto__
    2. Object.prototype.constructor

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