js冒泡排序

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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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    <title>JS冒泡排序</title>
</head>
<body>
    <script>
        var arr = [3,1,5,22,13,18,66,43,33,68];
        var temp;
        function sortFn(arr){
            for(var i = 0; i < arr.length - 1; i++){
                for(var j = 0; j < arr.length - 1 - i; j++){
                    if(arr[j] > arr[j+1]){
                        temp = arr[j];
                        arr[j] = arr[j+1];
                        arr[j+1] = temp;
                    }
                }
            }
            return arr;
        }
        console.log(sortFn(arr)); //[1, 3, 5, 13, 18, 22, 33, 43, 66, 68]
    </script>
</body>
</html>