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
Intro to Ruby 2.0
Search
Matt Aimonetti
March 07, 2013
Programming
7
750
Intro to Ruby 2.0
Matt Aimonetti introduces Ruby 2.0 at SDRuby in Febr 2013.
Matt Aimonetti
March 07, 2013
Tweet
Share
More Decks by Matt Aimonetti
See All by Matt Aimonetti
Designing a generic audio API
matt_aimonetti
0
97
Applied concurrency in Go
matt_aimonetti
5
6.3k
Understanding & Sharing Rails sessions
matt_aimonetti
1
1.1k
3 secrets to build web APIs in Go
matt_aimonetti
6
1k
Go at Splice - Go SummerFest
matt_aimonetti
0
1.5k
Wicked Bad Ruby
matt_aimonetti
3
3.7k
Ruby vs. The World
matt_aimonetti
20
5.9k
mmmm..mruby everywhere & revisiting Ruby
matt_aimonetti
9
5.1k
Tower of Babel: A tour of programming languages
matt_aimonetti
28
11k
Other Decks in Programming
See All in Programming
Elixir で IoT 開発、 Nerves なら簡単にできる!?
pojiro
1
150
来たるべき 8.0 に備えて React 19 新機能と React Router 固有機能の取捨選択とすり合わせを考える
oukayuka
2
860
ニーリーにおけるプロダクトエンジニア
nealle
0
490
プロダクト志向なエンジニアがもう一歩先の価値を目指すために意識したこと
nealle
0
110
C++20 射影変換
faithandbrave
0
530
Julia という言語について (FP in Julia « SIDE: F ») for 関数型まつり2025
antimon2
3
980
コードの90%をAIが書く世界で何が待っているのか / What awaits us in a world where 90% of the code is written by AI
rkaga
46
31k
Cursor AI Agentと伴走する アプリケーションの高速リプレイス
daisuketakeda
1
130
GoのGenericsによるslice操作との付き合い方
syumai
3
690
AIコーディング道場勉強会#2 君(エンジニア)たちはどう生きるか
misakiotb
1
250
Composerが「依存解決」のためにどんな工夫をしているか #phpcon
o0h
PRO
1
230
LINEヤフー データグループ紹介
lycorp_recruit_jp
0
890
Featured
See All Featured
Bash Introduction
62gerente
614
210k
Raft: Consensus for Rubyists
vanstee
140
7k
StorybookのUI Testing Handbookを読んだ
zakiyama
30
5.8k
Speed Design
sergeychernyshev
32
1k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
130
19k
Gamification - CAS2011
davidbonilla
81
5.3k
GitHub's CSS Performance
jonrohan
1031
460k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
138
34k
Reflections from 52 weeks, 52 projects
jeffersonlam
351
20k
Designing for Performance
lara
609
69k
Optimising Largest Contentful Paint
csswizardry
37
3.3k
How to Ace a Technical Interview
jacobian
277
23k
Transcript
ruby 2.0 San Diego Ruby - March 2013 - Matt
Aimonetti Wednesday, March 13, 13
Barney Stinson approved Wednesday, March 13, 13
Safe for Human Consumption Wednesday, March 13, 13
horse meat free Wednesday, March 13, 13
Ruby is 20 years old! Wednesday, March 13, 13
what you really need to know Wednesday, March 13, 13
Migration from Ruby 1.9 is trivial Wednesday, March 13, 13
Ruby 1.8 reaches its end of life in June Wednesday,
March 13, 13
Performance improvement Wednesday, March 13, 13
favorite Ruby Wednesday, March 13, 13
less new features Wednesday, March 13, 13
The new REE Wednesday, March 13, 13
Heroku support Wednesday, March 13, 13
Ruby 2.1 scheduled for Xmas 2013 Wednesday, March 13, 13
getting started Wednesday, March 13, 13
rvm rbenv chruby Wednesday, March 13, 13
libyaml (recent) openssl Dependencies you might need to resolve Wednesday,
March 13, 13
new in 2.0 Wednesday, March 13, 13
default code encoding Wednesday, March 13, 13
keyword arguments Wednesday, March 13, 13
# before def create(name, opts={}) opts[:tos] ||= false
opts[:timestamp] ||= Time.now end Wednesday, March 13, 13
# now def create(name, tos: false,
timestamp: Time.now) puts [name, tos, timestamp].inspect end Wednesday, March 13, 13
create("Matt") # -‐> ["Matt", false,
2013-‐03-‐06 16:34:49 -‐0800] create("Matt", timestamp: Time.now -‐ 42) # -‐> ["Matt", false, 2013-‐03-‐06 16:34:07 -‐0800] create("Matt", tos: true, location: "SDRuby") # -‐> unknown keyword: location (ArgumentError) Wednesday, March 13, 13
create("Matt", tos: true, location:
"SDRuby") # -‐> unknown keyword: location (ArgumentError) Wednesday, March 13, 13
# more flexible API def create(name, tos: false,
timestamp: Time.now, **rest) puts [name, tos, timestamp, rest].inspect end Wednesday, March 13, 13
create("Matt") # -‐> ["Matt", false,
2013-‐03-‐06 16:30:29 -‐0800, {}] create("Matt", timestamp: Time.now -‐ 42) # -‐> ["Matt", false, 2013-‐03-‐06 16:29:47 -‐0800, {}] create("Matt", tos: true, location: "SDRuby") # -‐> ["Matt", true, 2013-‐03-‐06 16:30:29 -‐0800, {:location=>"SDRuby"}] Wednesday, March 13, 13
# required keyword param def new(name,
tos: raise("TOS is required"), admin: false) end Wednesday, March 13, 13
new("Matt", tos: false) #-‐> ["Matt", false, false] new("Matt") #-‐> TOS
is required (RuntimeError) Wednesday, March 13, 13
module #prepend Wednesday, March 13, 13
# Not our code class Action def start
"just do it" end end Wednesday, March 13, 13
# The module including our modifying code module RubyIt
def start super + " better with Ruby!" end end Wednesday, March 13, 13
module RubyIt def start super +
" better with Ruby!" end end Wednesday, March 13, 13
class Action prepend RubyIt end p Action.new.start #
-‐> "just do it better with Ruby!" Wednesday, March 13, 13
lazy streams Wednesday, March 13, 13
require 'date' # Print the next 13 Friday the
13th. puts (Date.new(2013)..Date.new(9999)) .lazy .select{|d| d.day == 13 && d.friday?} .first(13) Wednesday, March 13, 13
2013-09-13 2013-12-13 2014-06-13 2015-02-13 2015-03-13 2015-11-13 2016-05-13 2017-01-13 2017-10-13 2018-04-13
2018-07-13 2019-09-13 2019-12-13 Wednesday, March 13, 13
to_h convention Wednesday, March 13, 13
Talk = Struct.new(:title, :speaker) Talk.new("Ruby 2.0", "Matt").to_h # => {:title=>"Ruby
2.0", :speaker=>"Matt"} Wednesday, March 13, 13
%i{foo bar baz} [:foo, :bar, :baz] Wednesday, March 13, 13
tracepoint support Wednesday, March 13, 13
GC/misc optimization Wednesday, March 13, 13
more... Wednesday, March 13, 13
caller_locations caller(start, length) Wednesday, March 13, 13
dtrace support Wednesday, March 13, 13
infamous refinements Wednesday, March 13, 13
Array / Range binary search Wednesday, March 13, 13
Kernel.inspect != Kernel.to_s Wednesday, March 13, 13
String#b "déjà vu".b Wednesday, March 13, 13
Thread. current. thread_variable_set("@foo", 42)
Thread. current. thread_variable_get("@foo") Thread.current.thread_variables Wednesday, March 13, 13
https://github.com/ruby/ ruby/blob/ruby_2_0_0/NEWS Wednesday, March 13, 13
@merbist http://matt.aimonetti.net Wednesday, March 13, 13