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@selector() in Swift?
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In Swift 2.2 (Xcode 7.3) and later (including Swift 3 / Xcode 8 and Swift 4 / Xcode 9):
You can construct a Selector from a Swift function type using the #selector expression.
let timer = Timer(timeInterval: 1, target: object,
selector: #selector(MyClass.test),
u...
What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
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4 Answers
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What's the difference between returning void and returning a Task?
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4 Answers
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How to check iOS version?
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edited Sep 6 '17 at 15:14
nathan
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answered Jul ...
How to check if a path is absolute path or relative path in cross platform way with Python?
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answered Jul 23 '10 at 16:47
Donald MinerDonald Miner
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Ruby Bundle Symbol not found: _SSLv2_client_method (LoadError)
...oading ruby-2.1.2.tar.gz...
-> http://dqw8nmjcqpjn7.cloudfront.net/f22a6447811a81f3c808d1c2a5ce3b5f5f0955c68c9a749182feb425589e6635
Installing ruby-2.1.2...
Installed ruby-2.1.2 to /Users/ryan/.rbenv/versions/2.1.2
share...
Order a MySQL table by two columns
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Default sorting is ascending, you need to add the keyword DESC to both your orders:
ORDER BY ...
How can I check for NaN values?
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edited Jul 22 '19 at 11:42
Boris
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answered Jun ...
Python: Find in list
... certain element is in the list:
[1,2,3].index(2) # => 1
[1,2,3].index(4) # => ValueError
However, note that if you have duplicates, .index always returns the lowest index:......
[1,2,3,2].index(2) # => 1
If there are duplicates and you want all the indexes then you can use enumerate(...