From: 7stud -- <bbxx789_05ss@...>
Date: 2007-11-26T05:42:46+09:00
Subject: Re: entering nil  string value through gets

Nathan Viswa wrote:
> 
>   democrats.each { |i| print i, " "} if party == "democrats"
>   puts 'x5'
>   republicans.each { |i| print i, " "} if party == "republicans"
>   puts 'x6'
>   print "All presidents since 1976 were either Democrats or
> Republicans\n"\
>       if (party != "democrats" && party != "republicans")
> end

By the way, constructs like the above require that ruby evaluate all 
three of the conditionals, where with a construct like:

  if party == 'democrats'
    puts 'dems'
  elsif party == 'republicans'
    puts 'rep'
  else
    puts "All presidents..."
  end


as soon as one if-conditional is found to be true, the others below it 
are not evaluated.  Also notice that no complex conditional has to be 
used for the else clause.

The ruby syntax where an  if conditional comes at the end of a statement 
is a particularly horrid one.  I suggest you avoid it completely.


-- 
Posted via http://www.ruby-forum.com/.