<script type="text/javascript">

//求数组中最大的数

var arr=[123,456,789,657,432,564];

var arrMax= getMaxValue(arr);

alert(arrMax);

function getMaxValue(arrInt)

{

    var max=arrInt[0];

    for(var i=0;i<arr.length;i++)

    {

        if(arrInt[i] > max)

        {

                     max=arrInt[i];

        }

    }

    return max;

}

</script>

//数组转换为字符串
<script type="text/javascript">

var names=["京客隆","问候语","时间的话","搜舞蹈","圣诞节快乐"]

var named=getName(names);

alert(named);

function getName(strName)

{

    var str="";

    for(var i=0; i<strName.length;i++)

    {

        str=str+strName[i]+"|";

    }

    return str.substring(0,str.length-1);

}

</script>

 //去掉id为1的对象组

<script type="text/javascript">

        var modJson=[{id:"1",name:"wwee",addr:"3qw"},{id:"2",name:"user",addr:"kkk"},{id:"3",name:"we42",addr:"23ds"}];

        for (var i = 0; i < modJson.length; i++) {

                    if (modJson[i].id == 1) {

                        modJson.splice($.inArray(modJson[i], modJson), 1);//去掉id为1的对象组

                    }

        }

        console.info(modJson);

    </script>

//数组_顺序翻转

<script type="text/javascript">

var names=["京客隆","问候语","时间的话","搜舞蹈","huahua"]

getName(names);

alert(names);

function getName(strName)

{

    var str;

    for(var i=0; i<strName.length/2;i++)

    {

        str=strName[i];

        strName[i]=strName[strName.length-1-i];

        strName[strName.length-1-i]=str;

    }

}

</script>

//for和in的用法

<script type="text/javascript">

var mycars=new Array("any","mlik","yli");

var mycars1=new Array("df","w3","fgf");

for(var i=0;i<mycars.length;i++)

{

document.write(mycars[i]+"<br/>");

}

for(x in mycars1)

{

document.write(mycars1[x]+"<br/>")

}

document.write(mycars.concat(mycars1))//concat() 方法用于连接两个或多个数组。

</script>

<script>

var caser=new Array("我是谁","你是谁","他是谁");//声明变量caser为数组类型

for(var i=0;i<caser.length;i++)

{

    document.write(caser[i]+"<br>");

    }

    var unn=new Array();

    var j;

    unn[0]="123";

    unn[1]="456";

    unn[2]="789";

    for(j=0; j<unn.length;j++)

    {

        document.write(unn[j]);

        }

</script>