Ruby (programming Language) - Examples

Examples

The following examples can be run in a Ruby shell such as Interactive Ruby Shell or saved in a file and run from the command line by typing ruby .

Classic Hello world example:

puts "Hello World!"

Some basic Ruby code:

# Everything, including a literal, is an object, so this works: -199.abs # 199 "ice is nice".length # 11 "ruby is cool.".index("u") # 1 "Nice Day Isn't It?".downcase.split("").uniq.sort.join # " '?acdeinsty"

Conversions:

puts "What's your favorite number?" number = gets.chomp output_number = number.to_i + 1 puts output_number.to_s + ' is a bigger and better favorite number.'

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