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Set.prototype.values() - JavaScript | MDN
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Set.prototype.values()
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.
values()
は Set
インターフェイスのメソッドで、集合の新しいイテレーターオブジェクトを返します。これはこの集合のそれぞれの要素をの値を挿入順に返します。
試してみましょう
const set = new Set();
set.add(42);
set.add("forty two");
const iterator = set.values();
console.log(iterator.next().value);
// 予想される結果: 42
console.log(iterator.next().value);
// 予想される結果: "forty two"
構文
js
values()
引数
なし。
返値
新しい反復可能なイテレーターオブジェクトです。
例
>values() の使用
js
const mySet = new Set();
mySet.add("foo");
mySet.add("bar");
mySet.add("baz");
const setIter = mySet.values();
console.log(setIter.next().value); // "foo"
console.log(setIter.next().value); // "bar"
console.log(setIter.next().value); // "baz"
仕様書
Specification |
---|
ECMAScript® 2026 Language Specification> # sec-set.prototype.values> |
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