From: Kaye Ng <lists@...>
Date: 2012-05-24T17:34:17+09:00
Subject: Simple IO question

This prints every fifth character in a file:

f = File.new("test.txt", "r")
while a = f.getc
  puts a.chr
  f.seek(5, IO::SEEK_CUR)
end

I don't quite get the meaning of it.  Is it like, "while the variable
'a' has a value or contains something, it should be printed onto the
screen"?

Why is it not "while a == f.getc" ? ( == instead of = )

What does getc here mean anyway? I know it reads a single character,
correct?

Thank you guys!

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