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Calling a function of a module by using its name (a string)
...attr(foo, 'bar')
result = method_to_call()
You could shorten lines 2 and 3 to:
result = getattr(foo, 'bar')()
if that makes more sense for your use case.
You can use getattr in this fashion on class instance bound methods, module-level methods, class methods... the list goes on.
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How do I list all versions of a gem available at a remote site?
...c --remote --all
Which returns:
*** REMOTE GEMS ***
rhc (0.84.15, 0.84.13, 0.83.9, 0.82.18, 0.81.14, 0.80.5, 0.79.5, 0.77.8, 0.75.9, 0.74.6, 0.74.5, 0.73.14, 0.72.29, 0.71.2, 0.69.6, 0.69.3, 0.68.5)
rhcp (0.2.18, 0.2.17, 0.2.16, 0.2.15, 0.2.14, 0.1.9, 0.1.8, 0.1.7, 0.1.6, 0.1.5, 0.1.4, 0.1.3, 0.1...
Overriding class constants vs properties
...always refers to the class it is being executed in. If you are using php5.3+ you might try static::TEST as static:: is inheritance-aware.
The difference is that static:: uses "late static binding". Find more information here:
http://php.net/manual/en/language.oop5.late-static-bindings.php
Here'...
Difference between len() and .__len__()?
Is there any difference between calling len([1,2,3]) or [1,2,3].__len__() ?
4 Answers
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Shortcut to switch between design and text in Android Studio
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edited Mar 19 at 8:39
answered Dec 19 '13 at 13:35
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Understanding the ngRepeat 'track by' expression
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How to change variables value while debugging with LLDB in Xcode?
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3 Answers
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read subprocess stdout line by line
... Rômulo CecconRômulo Ceccon
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How to express a NOT IN query with ActiveRecord/Rails?
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Rails 4+:
Article.where.not(title: ['Rails 3', 'Rails 5'])
Rails 3:
Topic.where('id NOT I...
How to do this using jQuery - document.getElementById(“selectlist”).value
...LOL.
– Jacob Relkin
Mar 10 '11 at 0:30
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