js对象模拟数组

排序完了不知道要返回数组还是对象,先这样吧
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>object</title>
</head>
<body>
<script>
    function myArray() {
        this.length = arguments.length;
        this.arr = []
        for (var i = 0; i < this.length; i++) {
            this[i] = arguments[i];
            this.arr[i] = arguments[i]; //也可以把数组转到一个单独的属性里去操作
        }
        this.sort = function (order) {
            var a = this.arr[0];
            var b = this.arr[1];
            var desc = order(a, b) > 0 ? true : false;
            for (var i=0;i<this.length;i++) {
                for (var j = 0; j < this.length - 1 - i; j++) {
                    if (desc) {
                        if (this[j] < this[j + 1]) {
                            var min = this[j];
                            this[j] = this[j + 1];
                            this[j + 1] = min;
                        }
                    } else {
                        if (this[j] > this[j + 1]) {
                            var max = this[j];
                            this[j] = this[j + 1];
                            this[j + 1] = max;
                        }
                    }
                }
            }
            return this;
        }
        this.reverse = function () {
            var arrReversed = [];
            var j = 0;
            for (var i = this.length - 1; i >= 0; i--) {
                arrReversed[j] = this[i];
                j++;
            }
            return arrReversed;
        }
        this.max = function () {
            var max = this[0];
            for (var i = 1; i < this.length; i++) {
                if (this[i] > max) {
                    max = this[i];
                }
            }
            return max;
        }
        this.min = function () {
            var min = this[0];
            for (var i = 1; i < this.length; i++) {
                if (this[i] < min) {
                    min = this[i]
                }
            }
            return min;
        }
    }
    var arrObj = new myArray(1, 3, 5, 7, 2, 4, 6, 8);
    var sortedArr = arrObj.sort(function (a, b) {
        return a - b;
    })
    console.log(sortedArr);
    console.log(arrObj.reverse());
    console.log(arrObj.max());
    console.log(arrObj.min());
</script>
</body>
</html>
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