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用原型实现排序

用原型实现排序

作者: Hello杨先生 | 来源:发表于2019-07-17 14:52 被阅读0次
<!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 arr = [2, 34, 5, 33, 45]
        var temp;
        arr.prototype = Array.prototype.for;
        Array.prototype.for = function () {
            for (var i = 0; i < arr.length; i++) {
                for (var j = i + 1; j < arr.length; j++) {
                    if (arr[i] > arr[j]) {
                        temp = arr[i];
                        arr[i] = arr[j];
                        arr[j] = temp;
                    }
                }
            }
        }
        arr.for();
        alert(arr)
    </script>
    <!-- <script>
        function Arr() {}
        Arr.prototype.newarr = [2, 1, 8, 56, 24, 45, 32];
        Arr.prototype.forSort = function () {
            for (var i = 0; i < arr.newarr.length; i++) {
                for (var j = i + 1; j < arr.newarr.length; j++) {
                    if (arr.newarr[i] > arr.newarr[j]) {
                        var temp = arr.newarr[i];
                        arr.newarr[i] = arr.newarr[j];
                        arr.newarr[j] = temp;
                    }
                }
            }
            document.write(arr.newarr);
        };
        var arr = new Arr();
        arr.forSort();
    </script> -->
</body>

</html>

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