Method Chaining

Method chaining passes each result into the next method call.

method_chaining.rb

raw_text = 

cleaned = raw_text.strip
normalized = cleaned.downcase
title = normalized.capitalize
label = title.then { |text| "Topic: #{text}" }

puts "raw=#{raw_text}"
puts "cleaned=#{cleaned}"
puts "label=#{label}"

raw_text = 

cleaned = raw_text.strip
normalized = cleaned.downcase
title = normalized.capitalize
label = title.then { |text| "Topic: #{text}" }

puts "raw=#{raw_text}"
puts "cleaned=#{cleaned}"
puts "label=#{label}"

raw_text = 

cleaned = raw_text.strip
normalized = cleaned.downcase
title = normalized.capitalize
label = title.then { |text| "Topic: #{text}" }

puts "raw=#{raw_text}"
puts "cleaned=#{cleaned}"
puts "label=#{label}"

method chain A method chain reads left to right when each step returns a value for the next step.