split()，不明白错在哪？？

Question

因为粗心,for(var i=0 ;i<a.lentgh;i++),看看哪写错了

Answer 1

<script language="javascript">
var s="a/b/c/d/e";
var a=s.split("/");
document.writeln (a.length);
for(var i=0 ;i<a.length;i++)
document.writeln (a[i]);
</script>

Answer 2

<script language="javascript">
var s="a/b/c/d/e";
var a=s.split("/");
document.writeln (a.length);
for(var i=0 ;i<a.lentgh;i++)//lentgh错啦,,改为length就OK了,
document.writeln (a[i]);
</script>

Answer 3

i<a.lentgh＝＝＝＝>i<a.length