Toki Toki wrote:
> Ok, so this:
> 
> %w[uri net/http].each{|l|require l}
> 10.times do
>   Thread.new
> {Net::HTTP.get_response(URI.parse('http://www.google.com/'))}
> end
> 
> is equal to this:
> 
> require 'net/http'
> require 'uri'
> 10.times do
>   Thread.new
> {Net::HTTP.get_response(URI.parse('http://www.google.com/'))}
> end

Yes.

> Good, I've never used require with array.
> 
> But if I run the code above I get an error: url_call.rb:4: odd number 
> list for Hash
> 
> I think it's because of the curly braces that are viewed like an hash, 
> right? I don't know how Thread works in Ruby, but it seems that the 
> statements in the curly braces need to be on the same line as Thread.new 
> otherwise it give the error above...

Thread.new gets a block, so you could as well write the code above as:

require 'net/http'
require 'uri'
10.times do
   Thread.new do
     Net::HTTP.get_response(URI.parse('http://www.google.com/'))
   end
end

maybe this is a bit more clear to you?