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AtomicInteger lazySet vs. set
...re: http://psy-lob-saw.blogspot.co.uk/2012/12/atomiclazyset-is-performance-win-for.html
To summarize: lazySet is a weak volatile write in the sense that it acts as a store-store and not a store-load fence. This boils down to lazySet being JIT compiled to a MOV instruction that cannot be re-ordered ...
How does “make” app know default target to build if no target is specified?
...
This should be the correct answer. Explicit over implicit wins in this case.
– Sion
Sep 14 '18 at 9:05
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show 2 more commen...
Randomize a List
...rable.Range(1, 75));
numbers.Shuffle();
Console.WriteLine("The winning numbers are: {0}", string.Join(", ", numbers.GetRange(0, 5)));
}
}
public static class ThreadSafeRandom
{
[ThreadStatic] private static Random Local;
public static Random ThisThreadsRandom
...
jQuery .hasClass() vs .is()
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Update:
I committed a test following a comment and four upvotes to very comment. It turns out that what I had said is the correct answer. Here is the result:
http://jsperf.com/hasclass-vs-is-so
The is is multi-purpose, you can for example do is('.class'),...
Remote branch is not showing up in “git branch -r”
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I'm using the GitHub client on Win and sometimes it doesn't update the remote branches. The first line "git remote update" works like a charm. Easy & clean
– Stefano Buora
Aug 9 '16 at 13:42
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Collections.emptyMap() vs new HashMap()
...sing a Collection instead of null to avoid Exceptions being thrown on following operations? Using an immutable collection would just result in some other sort of exception I imagine. And assigning null is most certainly not less efficient than assigning a immutable constant.
– ...
C#: why sign an assembly?
...g with not signing it?
No, it is not necessary but it is a mechanism allowing you to ensure the authenticity of an assembly. It allows you to ensure that an assembly hasn't been tampered with and indeed it origins from this author. It is also necessary if you want to put them into the GAC.
Wha...
Do browsers send “\r\n” or “\n” or does it depend on the browser?
...ne (such as a "Bio" for a user's profile) I always end up writing the following paranoid code:
2 Answers
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Is there a performance gain in using single quotes vs double quotes in ruby?
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$ ruby -v
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.0.0]
$ cat benchmark_quotes.rb
# As of Ruby 1.9 Benchmark must be required
require 'benchmark'
n = 1000000
Benchmark.bm(15) do |x|
x.report("assign single") { n.times do; c = 'a string'; end}
x.report("assign doub...
What is MyAssembly.XmlSerializers.dll generated for?
... I know this is an old response but in VS2015 Update 3 on a Winforms app targeting .NET 2.0 x86 when compiled on a Win10 Ent 64bit system then even when the setting "Generate serialization assembly" dropdown to "Off" then the *.XmlSerializers.dll is still generated. My app does refere...