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1 parent 9c7a1c5 commit 312365fCopy full SHA for 312365f
1 file changed
valid-palindrome/Grit03.js
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+/**
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+ * @param {string} s
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+ * @return {boolean}
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+ */
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+var isPalindrome = function (s) {
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+ const regex = /[a-z0-9]/; // test는 g 플래그가 필요없다.
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+ const strArr = [...s.toLowerCase()].filter((c) => regex.test(c));
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+
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+ return strArr.join("") === strArr.reverse().join(""); // reverse는 배열의 메서드
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+};
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