如何过滤掉重复的值??

[RedSunMan]

如何过滤掉重复的值
如
var a;
a={'AA','BB','CC','DD'};
var b;
b={'BB','CC','EE'};
要求结果为：
var c={'AA','BB','CC','EE'}

[bzscs]

<script language="JavaScript">
<!--
var a;
a=['AA','BB','CC','DD'];
var b;
b=['BB','CC','EE'];

d = a.join('-')

for(var i=0;i<b.length;i++){
if(d.indexOf(b[i],0)<0){
d = d + '-' + b[i]
}
}
c = d.split('-')
alert(c)
//-->
</script>

[xzq686]

是否是下面的结果。
<script language="javascript">
var ss="AA,BB,CC,DS,AA,BB,AA,AA,AA,CC";
ss=ss.split(",").sort().join(",")+",";
alert(ss);
var re= /([a-z]+,)\1+/gi;
ss = ss.replace(re,"$1");
alert(ss);
window.close();
</script>

[xzq686]

和你的比较帖近：
<script language="javascript">
var a,b,c,str;
a=['AA','BB','CC','DD'];
b=['BB','CC','EE'];
c=a.concat(b);
c=c.sort().join(",");
var re= /([a-z]+,)\1+/gi;
c= c.replace(re,"$1");
alert(c);
</script>

[xzq686]

下面的对于任何字符的重复。声明一下，上面的i 加上了就是区分大小写了。
<script language="javascript">
var a,b,c,str;
a=['AA','BB','CC','DD','11'];
b=['BB','CC','EE','11'];
c=a.concat(b);
c=c.sort().join(",");
var re= /([^,]+,)\1+/g;
c= c.replace(re,"$1");
alert(c);
<script>