学步园

package com.utils
{
    /**
     *@author showping.tong
     *@link showping.tong@gmail.com
     */
    public class ArrayUtil
    {
        //在at位置刪除
        public static function deleteAt(at:uint,inputArr:Array):Array
        {
            var resultArray:Array=new Array;
            resultArray=inputArr
            resultArray.splice(at,1);
            return resultArray;
        }
        //刪除指定元素element
        public static function deleteElement(element:Object,inputArr:Array):Array
        {
            var resultArray:Array=new Array;
            for(var i:uint=0;i<inputArr.length;i++)
            {
                if(inputArr[i]==element)
                {
                    inputArr.splice(i,1);
                }
            }
            resultArray=inputArr
            return resultArray;
        }
        //在at位置添加element
        public static function insertAt(element:Object,at:uint,inputArr:Array):Array
        {
            var resultArray:Array=new Array;
            resultArray=inputArr;
            resultArray.splice(at,0,element);            
            return resultArray;
        }
        //兩個數組是否相等
        public static function isEqual(a_Arr:Array,b_Arr:Array):Boolean
        {
            if(a_Arr.length!=b_Arr.length)return false;
            for(var i:uint=0;i<a_Arr.length;i++)
            {
                if(getQualifiedClassName(a_Arr[i])!=getQualifiedClassName(b_Arr[i]))return false;
                if(a_Arr[i]!=b_Arr[i])return false;
            }
            return true;
        }
        //克隆數組
        public static function clone(inputArray:Array):Array
        {
            return inputArray.slice();
        }
        //在指定范圍產生一個隨機數組
        public static function getRandomArr(_rang : Number, _max : Number) : Array{
            var tempArr = new Array();
            while(tempArr.length<_rang)
            {
                var tempNum = rand(_max);
                if(!objectIsInList(tempNum,tempArr))
                {
                    tempArr.push(tempNum);
                }
            }
            return tempArr;
        }
        //元素是否在數組內
        public static function objectIsInList(_n : Object, list : Array) : Boolean {
            return (list.indexOf(_n) != -1);
        }
        //在指定范圍內產生一個序列
        public static function getSequence(low:Number,high:Number):Array
        {
            var result:Array = [];
            for (var i:uint=low; i<=high; i++)
            {
                result.push(i);
            }
            return result;
        }
        //打亂數組順序
        public static function shuffle(inputArray:Array):Array
        {
            var cf:Function = function ()
            {
                var r = Math.random() - 0.5;
                if (r < 0)
                {
                    return -1;
                }
                else
                {
                    return 1;
                }
            }    
            var resultArray:Array = ArrayUtils.clone(inputArray);
            resultArray.sort(cf);
            
            return resultArray;
        }
    }
}