Baseline Widely available
set()
ë©ìëë ì§ì ë í¤ì ê°ì ê°ì§ ì ìì를 WeakMap
ê°ì²´ì ì¶ê°í©ëë¤.
const weakmap1 = new WeakMap();
const object1 = {};
const object2 = {};
weakmap1.set(object1, "foo");
weakmap1.set(object2, "bar");
console.log(weakmap1.get(object1));
// Expected output: "foo"
console.log(weakmap1.get(object2));
// Expected output: "bar"
구문 매ê°ë³ì
key
íìë¡ ì구ëë©°, ë°ëì object
ì¬ì¼ í©ëë¤. WeakMap
ê°ì²´ì ì¶ê°í ììì í¤ì
ëë¤.
value
íìë¡ ì구ëë©°, ììì ê°ì
ëë¤. WeakMap
ê°ì²´ì ì¶ê°í ììì ê°ì
ëë¤.
WeakMap
ê°ì²´ì
ëë¤.
const wm = new WeakMap();
const obj = {};
// WeakMapì ì ìì를 ì¶ê°í©ëë¤
wm.set(obj, "foo").set(window, "bar"); // ì²´ì¸ê°ë¥
// WeakMap ìì ì
ë°ì´í¸
wm.set(obj, "baz");
ëª
ì¸ì ë¸ë¼ì°ì í¸íì± ê°ì´ë³´ê¸°
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