Ruby IF no ARGV given

ruby

Solution

Check if it's `empty?` (or check its length):

if ARGV.empty?
  puts ...
  exit
end

Consider using any of the Ruby command line argument parsers, like OptionParser.

Problem

This is my code: ``` if ARGV[0] == false puts "Usage: ./script.rb argument" exit end print "Yey we got an argument: " ARGV[0] ``` But I just cant make the code check if ARGV[0] is given or not, how should I do that ?

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