clear() 메서드는 Map 객체의 모든 요소를 제거합니다.

구문

myMap.clear();

반환 값

undefined.

예제

clear 메서드 사용법

var myMap = new Map();
myMap.set('bar', 'baz');
myMap.set(1, 'foo');

myMap.size;       // 2
myMap.has('bar'); // true

myMap.clear();

myMap.size;       // 0
myMap.has('bar')  // false

명세

Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Map.prototype.clear' in that specification.
Standard Initial definition.
ECMAScript Latest Draft (ECMA-262)
The definition of 'Map.prototype.clear' in that specification.
Draft  

브라우저 호환성

Update compatibility data on GitHub
DesktopMobileServer
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung InternetNode.js
Basic supportChrome Full support 38Edge Full support 12Firefox Full support 19IE Full support 11Opera Full support 25Safari Full support 8WebView Android Full support 38Chrome Android Full support 38Edge Mobile Full support 12Firefox Android Full support 19Opera Android Full support 25Safari iOS Full support 8Samsung Internet Android Full support Yesnodejs Full support 0.12

Legend

Full support  
Full support

같이 보기

문서 태그 및 공헌자

이 페이지의 공헌자: urty5656
최종 변경자: urty5656,