delete运算符（删除数组)

来源：互联网发布：枪林弹雨刷枪软件编辑：程序博客网时间：2024/04/29 16:50
<!DOCTYPE html><html lang="en"><head>    <meta http-equiv="content-type" content="text/html;charset=UTF-8">    <title>delete运算符（删除数组)</title>    <script type="text/javascript">        <!--        var array=[123,"abc",true];        array1=[1,2,3,4];        document.write("数组长度："+array.length,"<br/>");        document.write("数组中元素为:",array,"<br/>");        document.write("数组长度："+array1.length,"<br/>");        if(delete array[1])        {            document.write("删除数组中第二个元素","<br/>");            document.write("数组中元素为:",array,"<br/>");            document.write("数组长度："+array.length,"<br/>");        }        else        {            document.write("不能删除");        }        if(delete array1[1])        {            document.write("删除数组中第二个元素","<br/>");            document.write("数组中元素为:",array1,"<br/>");            document.write("数组长度："+array1.length,"<br/>");        }        else        {            document.write("不能删除");        }        if(delete array)        {            document.write("删除","<br/>");            document.write("数组长度："+array.length,"<br/>");        }        else        {            document.write("不能删除");        }        if(delete array1)        {            document.write("删除数组","<br/>");            document.write("数组中元素为:",array1,"<br/>");            document.write("数组长度："+array1.length,"<br/>");        }        else        {            document.write("不能删除");        }                -->    </script></head><body></body></html>
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