Ruby love story <3

Slides i used to talk about Ruby with BSUIR students at 23 March 2015

Transcript

1. Ruby love-story <3 Валентин Завадский, Rubyroid Labs
6. https://www.ruby-lang.org/en/
10. mid-1990s by Yukihiro "Matz" Matsumoto in Japan.
12. Лишь в 1997 году появилось описание Ruby на английском языке, а в 1998 году открылся форум «ruby-talk». Это положило начало росту известности языка в остальном мире.
13. • Thoroughly object-oriented with inheritance, mixins and metaclasses • Dynamic typing and duck typing • Everything is an expression (even statements) and everything is executed imperatively (even declarations) • Succinct and flexible syntax[43] that minimizes syntactic noise and serves as a foundation for domain-specific languages • Dynamic reflection and alteration of objects to facilitate metaprogramming • Lexical closures, iterators and generators, with a unique block syntax • Literal notation for arrays, hashes, regular expressions and symbols • Embedding code in strings (interpolation) • Default arguments • Four levels of variable scope (global, class, instance, and local) denoted by sigils or the lack thereof • Garbage collection • First-class continuations • Strict boolean coercion rules (everything is true except false and nil) • Exception handling • Operator overloading • Built-in support for rational numbers, complex numbers and arbitrary-precision arithmetic • Custom dispatch behavior (through method_missing and const_missing)
14. • MRI • JRuby • Rubinius • BlueRuby?
17. • http://tryruby.org/levels/1/challenges/0 • https://www.ruby-lang.org/en/documentation/ quickstart/ • https://rubymonk.com/
26. Ruby disadvantages
29. Ruby on Rails, or simply Rails, is an open source web application framework written in Ruby. Rails is a full- stack framework that emphasizes the use of well-known software engineering patterns and paradigms, including convention over configuration (CoC), don't repeat yourself (DRY), the active record pattern, and model–
30. 1.0[17] December 13, 2005 1.2[18] January 19, 2007 2.0[19] December 7, 2007 2.1[20] June 1, 2008 2.2[21] November 21, 2008 2.3[22] March 16, 2009 3.0[23] August 29, 2010 3.1[24] August 31, 2011 3.2[25] January 20, 2012 4.0[26] June 25, 2013 4.1[27] April 8, 2014 4.2[1] December 19, 2014
35. https://speakerdeck.com/a_matsuda/the-recipe-for-the-worlds- largest-rails-monolith
36. Rails disadvantages
54. twitter: http://twitter.com/saicheg github: http://github.com/saicheg vk: http://vk.com/saicheg