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How can I do a line break (line continuation) in Python?
...ly PEP-8 has changed since these comments were added, as it's fairly clear now that parentheses should be added to wrap long lines: "Long lines can be broken over multiple lines by wrapping expressions in parentheses."
– Daniel
Feb 8 '12 at 9:04
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Why is the order in dictionaries and sets arbitrary?
...gt;>> hash('bar') % 8
4
>>> hash('baz') % 8
4
Their order now depends on which key was slotted first; the second key will have to be moved to a next slot:
>>> {'baz': None, 'bar': None}
{'bar': None, 'baz': None}
>>> {'bar': None, 'baz': None}
{'baz': None, 'bar':...
How to check if a file exists in the Documents directory in Swift?
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Nowadays (2016) Apple recommends more and more to use the URL related API of NSURL, NSFileManager etc.
To get the documents directory in iOS and Swift 2 use
let documentDirectoryURL = try! NSFileManager.defaultManager().URL...
C# operator overload for `+=`?
...ist, which are compiled in a special method calls, and CLR itself doesn't know anything about operators. So let's see what exactly stays behind the + and += operators.
See this simple code:
Decimal d = 10M;
d = d + 10M;
Console.WriteLine(d);
Let view the IL-code for this instructions:
IL_0000...
How to expand folded package chain in Intellij IDEA?
...or disabling this feature for a certain package, but I can't find it where now. So, does anyone know how to control this feature? Thank you very much.
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pod install -bash: pod: command not found
... answered Jan 7 '13 at 21:09
SnowcrashSnowcrash
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Hidden features of Scala
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trait Functor[F[_]] {
def fmap[A, B](f: A => B, fa: F[A]): F[B]
}
Now, if you have a Functor[List], you can map over lists. If you have a Functor[Tree], you can map over trees. But more importantly, if you have Functor[A] for any A of kind (*->*), you can map a function over A.
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How to make URL/Phone-clickable UILabel?
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Setting the font is now done by: button.titleLabel.font = [UIFont systemFontOfSize:size];
– Leon
Apr 16 '18 at 8:12
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Best Way to read rss feed in .net Using C#
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This is an old post, but to save people some time if you get here now like I did, I suggest you have a look at the CodeHollow.FeedReader package which supports a wider range of RSS versions, is easier to use and seems more robust. https://github.com/codehollow/FeedReader
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How do I update a formula with Homebrew?
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This is indeed the correct way now. The old ways will still work if use append --force.
– mxcl
Feb 28 '12 at 17:37
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