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List comprehension in Ruby
...il?
self.collect(&block).compact
end
end
some_array = [1, 2, 3, 4, 5, 6]
new_array = some_array.comprehend {|x| x * 3 if x % 2 == 0}
puts new_array
Prints:
6
12
18
I would probably just do it the way you did though.
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how to convert an RGB image to numpy array?
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144
You can use newer OpenCV python interface (if I'm not mistaken it is available since OpenCV 2.2...
Where can I find the error logs of nginx, using FastCGI and Django?
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497
Errors are stored in the nginx log file. You can specify it in the root of the nginx configura...
Can't access RabbitMQ web management interface after fresh install
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4 Answers
4
Active
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How to call a method after a delay in Android
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1914
Kotlin
Handler(Looper.getMainLooper()).postDelayed({
//Do something after 100ms
},...
How to convert UTF-8 byte[] to string?
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James Webster
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answered Jun 16 '09 at 18:49
ZanoniZanoni
26k1111 gold badg...
Where are iOS simulator screenshots stored?
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14 Answers
14
Active
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What are the benefits of functional programming? [closed]
What do you think the benefits of functional programming are? And how do they apply to programmers today?
9 Answers
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Why rename synthesized properties in iOS with leading underscores? [duplicate]
When creating a new project in Xcode 4, the boilerplate code adds an underscore character when it synthesizes the ivars in the implementation file as:
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Changing navigation bar color in Swift
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542
Navigation Bar:
navigationController?.navigationBar.barTintColor = UIColor.green
Replace gre...