Baseline Widely available
Set()
ìì±ìë Set
ê°ì²´ë¥¼ ìì±í©ëë¤.
const set1 = new Set([1, 2, 3, 4, 5]);
console.log(set1.has(1));
// Expected output: true
console.log(set1.has(5));
// Expected output: true
console.log(set1.has(6));
// Expected output: false
구문
new Set()
new Set(iterable)
매ê°ë³ìì°¸ê³ :
Set()
ì ì¤ì§new
ì í¨ê» ìì±í ì ììµëë¤.new
ìì´ ìì±ì ìëíë©´TypeError
ê° ë°ìí©ëë¤.
iterable
Optional
ìí ê°ë¥í ê°ì²´ê° ì ë¬ëë©´ 모ë ììê° ìë¡ì´ Set
ì ì¶ê°ë©ëë¤.
ì´ ë§¤ê°ë³ì를 ì§ì íì§ ìê±°ë ê°ì´ null
ì¼ ê²½ì° ìë¡ì´ Set
ì ë¹ì´ìê² ë©ëë¤.
ìë¡ì´ Set
ê°ì²´.
Set
ê°ì²´ ì¬ì©í기
const mySet = new Set();
mySet.add(1); // Set [ 1 ]
mySet.add(5); // Set [ 1, 5 ]
mySet.add(5); // Set [ 1, 5 ]
mySet.add("some text"); // Set [ 1, 5, 'some text' ]
const o = { a: 1, b: 2 };
mySet.add(o);
ëª
ì¸ì ë¸ë¼ì°ì í¸íì± ê°ì´ 보기
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