forked from hakimel/reveal.js
-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathruby_vs_python.html
executable file
·519 lines (441 loc) · 16.7 KB
/
ruby_vs_python.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
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>reveal.js - The HTML Presentation Framework</title>
<meta name="description" content="A framework for easily creating beautiful presentations using HTML">
<meta name="author" content="Hakim El Hattab">
<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', include the PDF print sheet -->
<script>
if( window.location.search.match( /print-pdf/gi ) ) {
var link = document.createElement( 'link' );
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = 'css/print/pdf.css';
document.getElementsByTagName( 'head' )[0].appendChild( link );
}
</script>
<style>
h1, h2, h3, h4 {
font-family: Helvetica !important;
}
</style>
<!--[if lt IE 9]>
<script src="lib/js/html5shiv.js"></script>
<![endif]-->
</head>
<body>
<div class="reveal">
<!-- Any section element inside of this container is displayed as a slide -->
<div class="slides">
<section>
<h1>Ruby</h1>
<h3>z perspektywy programisty Python'a</h3>
<p>
<small>Created by <a href="http://socek.org">Socek</a></small>
</p>
</section>
<section>
<h2>To jest prezentacja typu <strong style="color: green;">AGILE</strong></h2>
<ul>
<li>Jeśli masz pytanie - przerywaj i pytaj od razu</li>
<li>Jeśli dyskusja będzie zbyt długa - przerwę ją i wrócę do niej po zakończeniu prezentacji</li>
<li>Ta prezentacja jest wersjonowana</li>
</ul>
</section>
<section>
<h1>Wersja</h1>
<h2>2</h2>
<h3>10.12.2014</h3>
</section>
<section>
<h3>Jako Pythonista</h3>
<h3>Nauczyłem się Rubiego</h3>
</section>
<section>
<h1>Mit</h1>
<p>Ruby oraz Python to bardzo podobne języki.</p>
</section>
<section>
<h2 style="font-family: arial;">Założenia języków</h2>
<p>Ruby - ulepszyć życie piszącym kod</p>
<p>Python - ulepszyć życie czytającym kod</p>
</section>
<section>
<h2 style="font-family: arial;">Założenia języków</h2>
<p>Python - wszystko jest obiektem</p>
<p>Ruby - wszystko jest metodą (wszystko coś zwraca)</p>
</section>
<section>
<h2 style="font-family: arial;">Obiektowość</h2>
<p>Ruby > Python</p>
</section>
<section>
<h2>Zen of Python (1/2)</h2>
<ul>
<li>Beautiful is better than ugly.</li>
<li>Explicit is better than implicit.</li>
<li>Simple is better than complex.</li>
<li>Complex is better than complicated.</li>
<li>Flat is better than nested.</li>
<li>Sparse is better than dense.</li>
<li>Readability counts.</li>
<li>Special cases aren't special enough to break the rules.</li>
<li>Although practicality beats purity.</li>
<li>Errors should never pass silently.</li>
<li>Unless explicitly silenced.</li>
</ul>
</section>
<section>
<h2>Zen of Python (2/2)</h2>
<ul>
<li>In the face of ambiguity, refuse the temptation to guess.</li>
<li>There should be one-- and preferably only one --obvious way to do it.</li>
<li>Although that way may not be obvious at first unless you're Dutch.</li>
<li>Now is better than never.</li>
<li>Although never is often better than *right* now.</li>
<li>If the implementation is hard to explain, it's a bad idea.</li>
<li>If the implementation is easy to explain, it may be a good idea.</li>
<li>Namespaces are one honking great idea -- let's do more of those!</li>
</ul>
</section>
<section>
<h2>Beautiful is better than ugly.</h2>
</section>
<section>
<h3>Explicit is better than implicit.</h3>
<h3>Simple is better than complex.</h3>
<h3>Complex is better than complicated.</h3>
<h3>Flat is better than nested.</h3>
<h3>Sparse is better than dense.</h3>
<h3>Readability counts.</h3>
</section>
<section>
<h3>Python</h3>
<pre><code class="python">
0:# module.py
1:class Cars(object):
2: def checkin(self, color):
3: selected_cars = self.cars.where(color=color)
4: for car in selected_cars:
5: car.checkkin()
6: return selected_cars
</code></pre>
</section>
<section>
<h3>Ruby</h3>
<pre><code class="ruby">
0:# module.rb
1:module Module
2: class Cars < ActiveRecord::Base
3: def checkin(color)
4: cars.where(color: color).each {|car| car.checkin}
5: end
6: end
7:end
</code></pre>
</section>
<section>
<h3>There should be one-- and preferably only one --obvious way to do it.</h3>
<h3>Special cases aren't special enough to break the rules.</h3>
</section>
<section>
<h3>Python</h3>
<pre><code class="python">class MyClass(object):
def method(self, argument):
return argument
def second(self):
return self.method(1)
</code></pre>
</section>
<section>
<h3>Ruby 1</h3>
<pre><code class="ruby">class MyClass
def method(argument)
return argument
end
def second()
return self.method(1)
end
end
</code></pre></section>
<section>
<h3>Ruby 2</h3>
<pre><code class="ruby">class MyClass
def method(argument)
argument #!
end
def second()
self.method(1) #!
end
end
</code></pre></section>
<section>
<h3>Ruby 3</h3>
<pre><code class="ruby">
class MyClass
def method argument #!
argument
end
def second #!
self.method 1 #!
end
end
</code></pre>
</section>
<section>
<h3>Ruby 4</h3>
<pre><code class="ruby">
class MyClass
def method argument
argument
end
def second
method 1 #!
end
end
</code></pre>
</section>
<section>
<h3>Krzywa uczenia się</h3>
<h4>Python > Ruby</h4>
</section>
<section>
<h3>Errors should never pass silently.</h3>
<h3>Unless explicitly silenced.</h3>
</section>
<section>
<h3>Python</h3>
<pre><code class="python">
>>> data = {'jeden' : 1}
>>> data['dwa']
Traceback (most recent call last):
File "stdin", line 1, in module
KeyError: 'dwa'
</code></pre>
</section>
<section>
<h3>Ruby</h3>
<pre><code class="ruby">
irb(main):004:0> data = {:jeden => 1}
=> {:jeden=>1}
irb(main):005:0> data[:dwa]
=> nil
</code></pre>
</section>
<section>
<img src="lib/bug-vs-feature.jpg">
</section>
<section>
<h3>Namespaces are one honking great idea -- let's do more of those!</h3>
<h3>In the face of ambiguity, refuse the temptation to guess.</h3>
</section>
<section>
<h3>Python</h3>
<pre><code>
baelfire/recipe.py
baelfire/dependencies
baelfire/dependencies/__init__.py
baelfire/dependencies/file.py
baelfire/dependencies/tests
baelfire/dependencies/tests/__init__.py
baelfire/dependencies/tests/file.py
baelfire/dependencies/tests/dependency.py
baelfire/dependencies/dependency.py
from baelfire.dependencies.tests.dependency import Example
from baelfire.dependencies.dependency import Example
</code></pre>
</section>
<section>
<h3>Ruby</h3>
<pre><code>
projekt/katalog/plik.rb
projekt/plik.rb
projekt/run.rb
</code></pre>
</section>
<section>
<h3>Ruby (katalog/plik.rb)</h3>
<pre><code class="ruby">
class Example
def metoda_druga
puts "Metoda druga"
end
end
</code></pre>
</section>
<section>
<h3>Ruby (plik.rb)</h3>
<pre><code class="ruby">
class Example
def metoda
puts "Metoda Pierwsza"
end
end
</code></pre>
</section>
<section>
<h3>Ruby (run.rb)</h3>
<pre><code class="ruby">
$LOAD_PATH << '.'
require "katalog/plik"
require "plik"
obiekt = Example.new
obiekt.metoda
obiekt.metoda_druga
</code></pre>
</section>
<section>
<pre></code>socek@sockolap ~/tmp/projekt $ ruby run.rb
Metoda Pierwsza
Metoda druga</pre>
</section>
<section>
<h3>Monkey Patching!</h3>
<p>A monkey patch is a way to extend or modify the run-time code of dynamic languages without altering the original source code.</p>
</section>
<section>
<h2 style="font-family: arial;">Obiektowość - dlaczego?</h2>
<h3>Ruby</h3>
<pre><code class="ruby">array.length</code></pre>
<h3>Python</h3>
<pre><code class="python">len(array)</code></pre>
</section>
<section>
<h2 style="font-family: arial;">Obiektowość</h2>
<p>Ruby > Python</p>
</section>
<section>
<img src="lib/img/spidey.jpg">
</section>
<section>
<h1>Testy?</h1>
<h2>Testy!</h2>
<h3>Testy...</h3>
</section>
<section>
<h3>David Heinemeier Hansson</h3>
<p>
I rarely unit test in the traditional sense of the word, where all dependencies are mocked out, and thousands of tests can close in seconds. It just hasn't been a useful way of dealing with the testing of Rails applications.
</p>
</section>
<section>
<h3>Test jednostkowy</h3>
<p>Test jednostkowy (ang. unit test) – w programowaniu metoda testowania tworzonego oprogramowania poprzez wykonywanie testów weryfikujących poprawność działania pojedynczych elementów (jednostek) programu – np. metod lub obiektów w programowaniu obiektowym lub procedur w programowaniu proceduralnym. - wikipedia</p>
</section>
<section>
<h2>WTF?!</h2>
<p>Czyli ból dupy Pythonisty</p>
</section>
<section>
<h3>Ruby 1</h3>
<pre><code class="ruby">class MyClass
def method argument
self.pole = argument
end
def second
method 10
pole = 15
puts self.pole
end
end</code></pre>
</section>
<section>
<pre><code>socek@sockolap /tmp/gówno $ ruby test.rb
test.rb:3:in `method': undefined method `pole=' for
#<MyClass:0x0000000133e950> (NoMethodError)
from test.rb:7:in `second'
from test.rb:14:in `<main>'</code></pre>
</section>
<section>
<h3>Ruby 2</h3>
<pre><code class="ruby">irb(main):001:0> 3 and 4
=> 4
irb(main):003:0> puts 3 and 4
3
=> nil</code></pre>
</section>
<section>
<h3>Ruby 3</h3>
<pre><code class="ruby">irb(main):003:0> puts 3 and 4
3
=> nil
irb(main):011:0> (puts 3) and 4
3
=> nil
irb(main):003:0> puts 3 && 4
4
=> nil</code></pre>
</section>
<section>
<h2>Paczki</h2>
<h3>Framework WWW</h3>
<p class="fragment">Python - Django, Pyramid, Flask oraz wiele innych</p>
<p class="fragment">Ruby - Rails i "jeszcze jeden"</p>
</section>
<section>
<h2>Paczki</h2>
<h3>Autoryzacja</h3>
<p class="fragment">Ruby - Device, Sorcery</p>
<p class="fragment">Python - Django!, ?</p>
</section>
<section>
<h2>Paczki</h2>
<h3>Okienka</h3>
<p class="fragment">Python - PySide, PyQt, wxWidgets, ...</p>
<p class="fragment">Ruby - ?</p>
</section>
<section>
<h2>Obsługi WWW</h2>
<p>Ruby > Python</p>
</section>
<section>
<h2>Cała reszta</h2>
<p>Ruby < Python</p>
</section>
<section>
<h1>THE END</h1>
<h3>BY Socek</h3>
<img src="lib/koza.jpg">
</section>
<section>
<img src="lib/tsh.png">
<h3>Szuka programistów</h3>
</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>