-
Notifications
You must be signed in to change notification settings - Fork 0
/
index.html
347 lines (289 loc) · 8.09 KB
/
index.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>budapest.rb - Ruby 2.0</title>
<meta name="description" content="What's new in Ruby 2.0">
<meta name="author" content="Gabor Ratky">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="stylesheet" href="css/reveal.min.css">
<link rel="stylesheet" href="css/theme/default.css" id="theme">
<!-- For syntax highlighting -->
<link rel="stylesheet" href="lib/css/zenburn.css">
<!-- If the query includes 'print-pdf', use the PDF print sheet -->
<script>
document.write( '<link rel="stylesheet" href="css/print/' + ( window.location.search.match( /print-pdf/gi ) ? 'pdf' : 'paper' ) + '.css" type="text/css" media="print">' );
</script>
<!--[if lt IE 9]>
<script src="lib/js/html5shiv.js"></script>
<![endif]-->
<style>
.mail{
direction: rtl;
unicode-bidi: bidi-override;
}
</style>
</head>
<body>
<div class="reveal">
<!-- Any section element inside of this container is displayed as a slide -->
<div class="slides">
<section>
<h1>Ruby 2.0</h1>
<p>
<small>Gabor Ratky / <a href="http://twitter.com/rgabo">@rgabo</a></small>
</p>
<a href="http://secretsaucepartners.com"><img src="assets/ssp.png" width="64" height="64" /></a>
</section>
<section>
<h1>Timeline</h1>
<ul>
<li>Ruby 1.8: 2003 August</li>
<li>Ruby 1.9: 2007 December</li>
<li>Ruby 2.0.0-p0: 2013 February 24</li>
<li>Ruby 2.0.0-p195: 2013 May 14</li>
<li>Ruby 2.0.0-p247: 2013 June 27</li>
<li strong style="color:#bada55">Ruby 2.0.0-p353: 2013 November 22</li>
<li>Ruby 2.1.0-p0: 2013 December 25</li>
</ul>
</section>
<section>
<h1>Install</h1>
<h3>rvm</h3>
<pre>
<code>
rvm install ruby-2.0.0
</code>
</pre>
<h3>rbenv</h3>
<pre>
<code>
rbenv install 2.0.0-p353
</code>
</pre>
</section>
<section>
<h1>Compatibility</h1>
<img src="assets/chill.png" />
</section>
<section>
<h1>Deep changes</h1>
</section>
<section>
<h3>Bitmap garbage collection</h3>
</section>
<section>
<h3>Backwards compatible with 1.9</h3>
</section>
<section>
<h3>require() speed improvements</h3>
</section>
<section>
<h1>Big changes</h1>
</section>
<section>
<h1>Keyword arguments</h1>
<h3>today</h3>
<pre>
<code>
def foo(foo: 'bar', baz: 'qux', **rest)
# TODO
end
foo(baz: 'qux', foo: 'frob')
</code>
</pre>
<h3>future</h3>
<pre>
<code>
def foo(optional: 'default', required:)
end
</code>
</pre>
</section>
<section>
<h1>Prepend</h1>
<pre>
<code>
module Foo
def somehing; end
end
class MyClass
prepend Foo
end
MyClass.ancestors # =>[Foo, MyClass, Object...]
</code>
</pre>
<small>No more <span style="color:#bada55">alias_method_chain</span></small>
</section>
<section>
<h1>Lazy enumerators</h1>
<pre>
<code>
to_infinity = (0..Float::Infinity)
beyond =to_infinity.lazy.select do |n|
num % 42 == 0
end
100.times do { |n| puts beyond.next }
</code>
</pre>
<h3>Enumerator#size</h3>
<pre>
<code>
(1..100).to_a.permutation(4).size # => 94109400
enum = Enumerator.new(3) do |yielder| ...; end
def square_times(num)
return to_enum(:square_times) {num ** 2} unless block_given?
(num ** 2).times do |i|
yield i
end
end
</code>
</pre>
</section>
<section>
<h1>Refinements</h1>
<pre>
<code>
module Palindrome
refine String do
def palindrome?
self == self.reverse
end
end
end
using Palindrome # Monkey patch now active for context
"saippuakivikauppias".palindrome? # => true
</code>
</pre>
</section>
<section>
<h1>Small changes</h1>
</section>
<section>
<h1>Symbol array literal</h1>
<pre>
<code>
%i[foo bar baz] # => [:foo, :bar, :baz]
%I[#{1 + 1}x #{2 + 2}x] #=> [:"2x", :"4x"]
</code>
</pre>
</section>
<section>
<h1>Binary search</h1>
<pre>
<code>
haystack = (1..99999999)
haystack.bsearch do |needle|
needle == 12345
end
# => 12345
</code>
</pre>
</section>
<section>
<h1>UTF8 by default</h1>
<h3>Ruby 1.9</h3>
<pre>
<code>
#!/usr/bin/env ruby1.9
#encoding: utf-8
puts "★"
</code>
</pre>
<h3>Ruby 2.0</h3>
<pre>
<code>
#!/usr/bin/env ruby-2.0
puts "★"
</code>
</pre>
</section>
<section>
<h1>File directory</h1>
<pre>
<code>
# Ruby 1.8
require File.dirname(__FILE__) + "/lib"
File.read(File.dirname(__FILE__) + "/.config")
# Ruby 1.9
require_relative 'lib'
File.read(File.dirname(__FILE__) + '/.config')
# Ruby 2.0
require_relative 'lib'
File.read(__dir__ + '/.config')
</code>
</pre>
</section>
<section>
<h1>to_h</h1>
<pre>
<code>
Car = Struct.new(:make, :model, :year) do
def build
#...
end
end
car = Car.new('Toyota', 'Prius', 2014)
car.to_h # => {:make=>"Toyota", :model=>"Prius", :year=>2014}
nil.to_h # => {}
</code>
</pre>
<small>
<p>Implemented for:</p>
<ul>
<li>nil</li>
<li>Struct</li>
<li>OpenStruct</li>
<li style="text-decoration:line-through">Enumerable/Array</li>
</ul>
</small>
</section>
<section>
<h1>ETC</h1>
<p>
<ul>
<li>Unused variables can start with _</li>
<li>caller_locations</li>
<li>const_get understands namespaces</li>
<li>Rubygems Gemfile support</li>
<li>RDoc markdown support</li>
</ul>
</p>
<small><a href="http://globaldev.co.uk/2013/03/ruby-2-0-0-in-detail/">and many more...</a></small>
</section>
<section>
<h1>Thanks!</h1>
<img src="assets/great_gatsby.jpg" />
</section>
</div>
</div>
<script src="lib/js/head.min.js"></script>
<script src="js/reveal.min.js"></script>
<script>
// Full list of configuration options available here:
// https://github.com/hakimel/reveal.js#configuration
Reveal.initialize({
controls: true,
progress: true,
history: true,
center: true,
theme: Reveal.getQueryHash().theme, // available themes are in /css/theme
transition: Reveal.getQueryHash().transition || 'default', // default/cube/page/concave/zoom/linear/fade/none
// Parallax scrolling
// parallaxBackgroundImage: 'https://s3.amazonaws.com/hakim-static/reveal-js/reveal-parallax-1.jpg',
// parallaxBackgroundSize: '2100px 900px',
// Optional libraries used to extend on reveal.js
dependencies: [
{ src: 'lib/js/classList.js', condition: function() { return !document.body.classList; } },
{ src: 'plugin/markdown/marked.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
{ src: 'plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
{ src: 'plugin/highlight/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } },
{ src: 'plugin/zoom-js/zoom.js', async: true, condition: function() { return !!document.body.classList; } },
{ src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } }
]
});
</script>
</body>
</html>