Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
The Road to Ruby Mastery (RailsClub Moscow 2017)
Search
Bozhidar Batsov
September 23, 2017
Programming
1
1.2k
The Road to Ruby Mastery (RailsClub Moscow 2017)
Slide-deck from my presentation at RailsClub Moscow 2017.
Bozhidar Batsov
September 23, 2017
Tweet
Share
More Decks by Bozhidar Batsov
See All by Bozhidar Batsov
Clojure: The Bad Parts
bbatsov
0
51
Weird Ruby (RubyDay 2024, Verona)
bbatsov
0
140
Sustainable OSS (Balkan Ruby 2024, Sofia)
bbatsov
0
140
Ruby's Creed (RubyDay 2023, Verona)
bbatsov
0
18
Victims of Complexity
bbatsov
0
310
Ruby 3.0 Redux (Spark Academy, Jan 2021)
bbatsov
1
260
Ruby 3.0 Redux (Pivorak 4.0)
bbatsov
0
460
The Elements of Programming Style (HackConf 2019)
bbatsov
0
180
The Groundhog Day Development Method (HackConf 2019)
bbatsov
0
280
Other Decks in Programming
See All in Programming
Hack Claude Code with Claude Code
choplin
8
2.8k
効率的な開発手段として VRTを活用する
ishkawa
1
180
ZeroETLで始めるDynamoDBとS3の連携
afooooil
0
120
11年かかって やっとVibe Codingに 時代が追いつきましたね
yimajo
0
150
脱Riverpod?fqueryで考える、TanStack Queryライクなアーキテクチャの可能性
ostk0069
0
560
おやつのお供はお決まりですか?@WWDC25 Recap -Japan-\(region).swift
shingangan
0
150
Streamlitで実現できるようになったこと、実現してくれたこと
ayumu_yamaguchi
2
220
Workers を定期実行する方法は一つじゃない
rokuosan
0
130
What's new in AppKit on macOS 26
1024jp
0
170
Gemini CLIの"強み"を知る! Gemini CLIとClaude Codeを比較してみた!
kotahisafuru
2
150
Rails Frontend Evolution: It Was a Setup All Along
skryukov
0
320
構文解析器入門
ydah
7
1.8k
Featured
See All Featured
Adopting Sorbet at Scale
ufuk
77
9.5k
A Modern Web Designer's Workflow
chriscoyier
695
190k
The Power of CSS Pseudo Elements
geoffreycrofte
77
5.9k
StorybookのUI Testing Handbookを読んだ
zakiyama
30
5.9k
ピンチをチャンスに:未来をつくるプロダクトロードマップ #pmconf2020
aki_iinuma
126
53k
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
marktimemedia
31
2.4k
KATA
mclloyd
30
14k
BBQ
matthewcrist
89
9.7k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
667
120k
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
irinanazarova
8
850
The World Runs on Bad Software
bkeepers
PRO
70
11k
What's in a price? How to price your products and services
michaelherold
246
12k
Transcript
None
Божидар
I’m back
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Большое спасибо!
Большое спасибо!
Sofia, Bulgaria
Sofia, Bulgaria
None
I’m an Emacs fanatic
bbatsov
None
None
They call me Master…
… and I’m a Rubyist
I must be The Master Rubyist!
None
This guy is so deep and profound!
The Road to Ruby Mastery by Bozhidar Batsov
Master
having or showing very great skill or proficiency
None
Novice
a person new to and inexperienced in a job or
situation
None
Journeyman
a worker, performer, or athlete who is experienced and good
but not excellent
None
Dreyfus Model of Skill Acquisition
Novice Advanced Beginner Competent Proficient Expert
The Road to Mastery
None
not really
try 10 years
http://norvig.com/21- days.html Teach Yourself Programming in Ten Years Peter Norvig
Apprenticeship
Novice Journeyman Master Apprenticeship Apprenticeship
learning from others
directly
indirectly
Computer Science Fundamentals
None
None
None
None
None
None
None
None
None
None
None
Object-oriented programming
None
Ruby is a purely object- oriented language
None
None
Know Thy Language!
Crazy People
None
Ruby is a VERY COMPLEX language!
class instance variable
protected
module_function vs extend self
refinements
super vs super()
== === equal? eql?
None
None
Grokking the language
Understanding and appreciating its philosophy
Coming to grips with reality
(no language is perfect)
(not even Clojure)
(some languages really suck)
Master the idioms
for i in 1..3 puts "Hello, Moscow!” end
3.times do puts "Hello, Moscow!” end
if some_condition then # body omitted end
def some_method # ... return result end
None
None
None
Read some (good) code
some == A LOT
None
Obtain a notion of style
None
None
Ruby Style Guide
None
Tackle problems with style
None
puts debugging sucks
bla bla bla puts ‘********’ puts x puts ‘********’
None
pro “puts” debugging techniques
object = Object.new puts object.method(:blank?).source_location # => ["/gems/activesupport-5.0.0.beta1/ lib/active_support/core_ext/object/ blank.rb",
14]
class Bar def foo puts "=====================" puts caller end end
def foo puts method(:foo).super_method.source_location super end
def parse(input, skip_code_comments: false, ignore_whitespace: true) # do stuff end
method(:parse).parameters #=> [[:req, :input], [:key, :skip_code_comments], [:key, :ignore_whitespace]]
config.thing = { "foo" => "bar" } config.thing.freeze = {
"foo" => "bar" } config.thing.delete("foo") # active_support/concurrency/share_lock.rb:151:in `delete': can't modify frozen Hash (RuntimeError) # from active_support/concurrency/share_lock.rb:151:in `yield_shares' # from active_support/concurrency/share_lock.rb:79:in `block in stop_exclusive'
Ruby Debugging Magic Cheat Sheet http://www.schneems.com/2016/01/25/ruby-debugging-magic-cheat- sheet.html
I am a puts debugger https://tenderlovemaking.com/2016/02/05/i-am-a-puts-debuggerer.html
I am not a puts debugger!
byebug https://github.com/deivid-rodriguez/byebug
pry-byebug https://github.com/deivid-rodriguez/pry-byebug
Profiling stuff
ruby-prof https://github.com/ruby-prof/ruby-prof
memory_profiler https://github.com/SamSaffron/memory_profiler
None
Beyond Rails
Opal
RubyMotion
System administration
JRuby
Alternative web frameworks
Hanami
Padrino
Sinatra
Roda
Keep in sync
RubyWeekly
Ruby5
RubyRogues
RubyTapas
GoRails
RailsClub
RubyConf
RailsConf
Always be exploring!
Clojure
Haskell
Elm
Erlang/Elixir
Racket
Ideas from other programming languages make us better programmers
One more thing…
Ruby is simply not a good fit for every possible
problem
None
None
ФЕЛИНА
Епилог twitter: @bbatsov github: @bbatsov http//batsov.com http://emacsredux.com RailsClub Moscow, Russia
23.09.2017