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Groups > comp.lang.ruby > #7217

"Put" in Ruby

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An examination of "Put" in Ruby : 

# this one is like your scripts with ARGV
def print_two(*args)
  arg1, arg2 = args
  puts "arg1: #{arg1}, arg2: #{arg2}"
end

# ok, that *args is actually pointless, we can just do this
def print_two_again(arg1, arg2)
  puts "arg1: #{arg1}, arg2: #{arg2}"
end

# this just takes one argument
def print_one(arg1)
  puts "arg1: #{arg1}"
end

# this one takes no arguments
def print_none()
  puts "I got nothin'."
end


print_two("Zed","Shaw")
print_two_again("Zed","Shaw")
print_one("First!")
print_none()


First off, puts is not a function. It's sole purpose is to have a side-effect (printing something to the console), whereas functions cannot have side-effects ... that's the definition of "function", after all.

Ruby doesn't have functions. It only has methods. Thus, puts is a method.

Is this true ? So basically, 'puts' is just a "thing" to enable printing something to the console ...

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Thread

"Put" in Ruby Cai Gengyang <gengyangcai@gmail.com> - 2016-04-15 08:23 -0700
  Re: "Put" in Ruby Sebastian Christ <rudolfo.christ@gmail.com> - 2016-04-15 20:57 +0200
    Re: "Put" in Ruby Robert Klemme <shortcutter@googlemail.com> - 2016-04-16 01:45 +0200
      Re: "Put" in Ruby Sebastian Christ <rudolfo.christ@gmail.com> - 2016-04-16 11:52 +0200
        Re: "Put" in Ruby Robert Klemme <shortcutter@googlemail.com> - 2016-04-16 13:40 +0200
  Re: "Put" in Ruby Robert Klemme <shortcutter@googlemail.com> - 2016-04-16 01:50 +0200
  Re: "Put" in Ruby Kaz Kylheku <545-066-4921@kylheku.com> - 2016-04-16 01:39 +0000

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