This site provides a collection of Ruby script examples, handy cheat sheets, and clear, concise explanations — all in one place. Each page shows real Ruby code you can run and learn from, helping you grasp both the syntax and the logic behind it.

array

• common_element.rb
• percent_expression.rb
• text2array.rb

csv

• read_with_new.rb
• read_with_read_bom.rb

date

• daynames.rb
• dow.rb
• format.rb
• monday_of_this_week1.rb
• monday_of_this_week2.rb
• monthnames.rb

digest

• md5sum.rb

encryption

• with_rsa.rb

erb

• read_file.rb
• read_file_direct.rb

file

• foreach.rb
• read.rb
• to_array.rb
• write.rb

hash

• zero_init.rb

heredoc

• plain_text.rb
• with_value.rb

http

• response_code_2xx.rb

io

• stdin.rb

ip

• mask.rb

join

• crossjoin.rb
• outer_join.rb

json

• read_with_load.rb
• read_with_open.rb
• read_with_parse.rb
• simple_get.rb
• write_file_with_open.rb
• write_file_with_write.rb

logger

• info.rb
• warn.rb

meta

• hash2class.rb

path

• dir.rb
• file.rb

roo

• cell.rb
• sheets_name.rb
• to_array.rb

script

• deprecate_method.rb
• main_block.rb

serialization

• deserialization.rb
• serialization.rb

text

• objects_to_text.rb
• to_objects.rb

Github Repository

https://github.com/YumaYX/rubydemodoc