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Leetcode-js
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414.第三大的数.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <script>
        var thirdMax = function (nums) {
            function sortN(a, b) {
                return b - a;
            }
            let mySet = new Set(nums);
            let myArr = [...mySet].sort(sortN);
            if(myArr.length===1) return myArr[0];
            if(myArr.length===2) return myArr[1];
            return myArr[myArr.length-3];
        };
    </script>
</body>

</html>