Right usage of ruby global variable $*

Question

Hello,

I was wondering the right usage for global variable $*.

If the program has puts $*[0] it works great. On the contrary, if I use it as follows:

   for i in 2..$*[0] 

a bad value for range (ArgumentError) is throw. Any advise is appreciated

Answer 1

ehm why would u use it ? if i am correct you could do this:

$hello = "Hello world"

it will work fine. you can use it for example if you have something like this:

$hello = "hello world"
class test
   def putHello()
    puts $hello
   end
end
t = test.new

Answer 2

That's because it has the wrong type. Try this:

for i in 2..$*[0].to_i