对象模拟数组

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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
    function MyArray() {
        this.pop=function (){
        var popData=this[this.length-1];
        delete this[this.length-1];
        this.length --;
        return popData;
    }
    this.push = function (){
        for (i=0;i<arguments.length;i++){
            this[this.length]=arguments[i];
            this.length++;
        }
        return this.length;
    }
        this.Sort=function (array,sort='asc') {
            var max = null;
                for(var i=0; i<array.length-1;i++ ){
                for(var j=0; j<array.length-1;j++){
                    //升序
                    if(sort==='asc'){
                        //当前 数 和 后一个数对比
                        if(array[j] > array[j+1]){
                            max=array[j]; //把较大的数赋值给max
                            array[j]=array[j+1];//较小的数排列到前面
                            array[j+1]=max;//较大的数排列到后面
                        }
                        //降序
                    }else{
                        //当前数和后一个数对比
                        if(array[j] < array[j+1]){
                            max=array[j+1];
                            //较小的数放到后面
                            array[j+1]=array[j];
                            //大的数放到前面
                            array[j]=max;
                        }
                    }
                }
            }
            return arguments[0]=array;
        }
        this.Reverse=function () {
            var newArray= new Array();
            for(var i=0;i<=arguments[0].length-1;i++){
                newArray[i]=arguments[0][arguments[0].length-(i+1)]
            }
            return newArray;
        }
        this.Max=function(){
            var array =arguments[0];
            var max= array[0];
            for(var i=0;i<array.length;i++){
                if(array[i] > max){
                    max= array[i];
                }
            }
            return max ;
        }
        this.Min=function () {
            var array =arguments[0];
            var min= array[0];
            for(var i=0;i<array.length;i++){
                if(array[i] < min){
                    min= array[i];
                }
            }
            return min ;
        }
    }
    var arr = new MyArray();
    var a= [1,5,4,10,9,8];
    console.log(arr.Sort(a,'asc'));//排序
    console.log(arr.Reverse(a));//反转
    console.log(arr.push(3,5,"e"));
    console.log(arr.pop());
    console.log(arr.Max(a));//最大
    console.log(arr.Min(a));//最小
</script>
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