js 字符串转为字符数组

for IE

<script type="text/javascript">

var obj="abdaffwead".replace(/(.)(?=[^$])/g,"$1,").split(",");
alert(obj);
alert(obj.length);
alert(obj instanceof Array);

</script>

for FF

<script type="text/javascript">
var obj=Array.prototype.slice.call("abdaffwead",0);
alert(obj);
alert(obj.length);
alert(obj instanceof Array);
</script>