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Any gotchas using unicode_literals in Python 2.6?
... = b'\xa4'
assert eval(repr(bstr)) == bstr # fails in Python 2.7, holds in 3.1+
ustr = '\xa4'
assert eval(repr(ustr)) == ustr # holds in Python 2.7 and 3.1+
The second assertion happens to work, since repr('\xa4') evaluates to u'\xa4' in Python 2.7.
...
Case objects vs Enumerations in Scala
...The following items from the enumeration definition are not available:
3.1 - It would be quite nice if a member could also be retrieved with its case insensitive name
7 - Thinking beyond Java's Enum, it would be nice to be able to explicitly leverage Scala's pattern matching exhaustiveness che...
How to pass arguments into a Rake task with environment in Rails? [duplicate]
...s.message}"
end
Updated per @Peiniau's comment below
As for Rails > 3.1
task :t, arg, :needs => [deps] # deprecated
Please use
task :t, [args] => [deps]
share
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improve this ans...
YYYY-MM-DD format date in shell script
... a more compact notation for the accepted answer.
– Håvard Geithus
Nov 16 '15 at 20:42
...
Array extension to remove object by value
...Ant", "Fish", "Cat"]
myArray = myArray.arrayRemovingObject("Cat" )
Swift 3.1 update
Came back to this now that Swift 3.1 is out. Below is an extension which provides exhaustive, fast, mutating and creating variants.
extension Array where Element:Equatable {
public mutating func remove(_ ite...
What's the best way to send a signal to all members of a process group?
...ll your own children, use pkill -TERM -P ${$}.
– François Beausoleil
Apr 10 '15 at 14:30
3
@Only...
Will strlen be calculated multiple times if used in a loop condition?
...
@Prætorian, good point on the zero length string. I didn't consider that case when I wrote my comment. Does C++ evaluate the i > 0 expression on initial loop entry? If it doesn't, then you're right, the zero length case will...
Multiple variables in a 'with' statement?
...
It is possible in Python 3 since v3.1 and Python 2.7. The new with syntax supports multiple context managers:
with A() as a, B() as b, C() as c:
doSomething(a,b,c)
Unlike the contextlib.nested, this guarantees that a and b will have their __exit__()'s...
Spring vs EJB. Can Spring replace EJB? [closed]
...don't require a standalone container neither if you go this way. Since EJB 3.1 there is the standard EJBContainer.createEJBContainer() API to use an embedded container. So, still, your statement is wrong.
– Pascal Thivent
Nov 22 '09 at 18:37
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C++并发编程（中文版） - 文档下载 - 清泛网 - 专注C/C++及内核技术
...时候不使用并发… 6
1.3 在C++中使用并发和多线程… 7
1.3.1 多线程在C++中的发展历程… 7
1.3.2 新标准对于并发的支持… 8
1.3.3 C++线程库的效率… 8
1.3.4 平台相关的工具… 9
1.4 开始入门… 9
1.4.1 你好，并发世界… 9
1.5 小结… ...