How can I chomp every line in an array at once?

Question

In the interest of writing cleaner code...

IO.popen("Generate a list of files").readlines.each{ |line|
   chomped_line = line.chomp
   # ...
}

Answer 1

IO.popen("Generate a list of files").readlines.map(&:chomp)

Answer 2

# Example 1
File.readlines("file.txt").each{|line| line.chomp!}

# Example 2
File.readlines("file.txt").map(&:chomp)

# Example 3
File.open("file.txt", "r"){|file| file.readlines.collect{|line| line.chomp}}