Cookbooks
Practical recipes for real-world Ruby programming tasks.
How to build a frequency tally from an array
Count repeated values in Ruby with each_with_object and a hash that defaults to zero.
ruby arrays hash enumeration
How to Work with Hashes in Ruby
Practical Ruby hash recipes: default values, merging, iteration, and transformation
ruby hash cookbook
How to Work with Files in Ruby
Practical Ruby recipes for reading, writing, and manipulating files
ruby file io cookbook
How to Work with Dates and Times in Ruby
Learn how to work with dates and times in Ruby with practical examples for common tasks
ruby datetime time date cookbook