Ruby: What's an elegant way to pick a random line from a text file?

I've seen some really beautiful examples of Ruby and I'm trying to shift my thinking to be able to produce them instead of just admire them. Here's the best I could come up with for picking a random line out of a file: def pick_random_line random_line = nil File.open("data.txt") do |file| file_lines = file.readlines() random_line = file_lines[Random.rand(0...file_lines.size())] end random_line end

[chezou]

sampling