How to find the length of an array class?

$param开发者_开发技巧 = k.chomp.split("\t")

How can I find the length of $param given that it is an array? actually when I'm writing

puts $param.class

I got the o/p like Array. Now how do I find the length of this array?

I tried $param.length but it's not working.

---

Ref Array class

k = "This \t is \t just \t testing"
$param=k.chomp.split("\t")
array_length= $param.length   #or $param.size
puts "length of $param is : #{array_length}"

o/p

length of $param is : 4

---

Try using .size like this:

$param.size