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Ruby

def our_lovely_backend_language; end

​Ruby is a dynamic, open source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write.
Official Documentation of our Current Version
Index of Files,  Classes & Methods in Ruby 2.6.3 (Ruby 2.6.3)
Staying up to Date
Newsletter: https://rubyweekly.com/​
Tips and Tricks
Underscore in irb
/*
    When interacting directly into irb or rails console,
    using the underscore `_` will refer to the last output
*/
​
$ irb
irb> ThirdParty.make_request(params)
irb> response = _
irb> response.parse() 
​

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Underscore in irb