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@guttyar2213

文字が要素の配列で重複していない文字だけ取り除く

Posted at

結論

("js".repeat(5)+"bavcab").split("").filter(function (e, i, self) {return self.filter(function (_e) {return _e===e}).length>=2})

この場合はvとcが配列から消える

参考

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