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When to use .First and when to use .FirstOrDefault with LINQ?
...nt only the first. Also it is ok for the result to be empty
From: http://www.technicaloverload.com/linq-single-vs-singleordefault-vs-first-vs-firstordefault/
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Why does SIGPIPE exist?
...
https://www.gnu.org/software/libc/manual/html_mono/libc.html
This link says:
A pipe or FIFO has to be open at both ends simultaneously. If you read from a pipe or FIFO file that doesn't have any processes writing to it (perhaps bec...
T-SQL CASE Clause: How to specify WHEN NULL
... be UNKNOWN, which is treated like false in a case structure. See: https://www.xaprb.com/blog/2006/05/18/why-null-never-compares-false-to-anything-in-sql/
To avoid this, Coalesce is the best way.
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Remove all classes that begin with a certain string
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http://www.mail-archive.com/jquery-en@googlegroups.com/msg03998.html says:
...and .removeClass() would remove all classes...
It works for me ;)
cheers
sh...
How do I increase the RAM and set up host-only networking in Vagrant?
...to change from the documents for VirtualBox command-line options:
http://www.virtualbox.org/manual/ch08.html#vboxmanage-modifyvm
The vagrant documentation has the section on how to change IP address:
Vagrant::Config.run do |config|
config.vm.network :hostonly, "192.168.50.4"
end
Also you ca...
How do you implement a “Did you mean”? [duplicate]
...stem.blogspot.com/2007/04/simplified-version-of-googles-spell.html
http://www.norvig.com/spell-correct.html
Dr Norvig also discusses the "did you mean" in this excellent talk. Dr Norvig is head of research at Google - when asked how "did you mean" is implemented, his answer is authoritive.
So i...
Understanding CUDA grid dimensions, block dimensions and threads organization (simple explanation) [
...of the 14x8=112 thread-processors can schedule up to 32 threads)
https://www.tutorialspoint.com/cuda/cuda_threads.htm
A block cannot have more active threads than 512 therefore __syncthreads can only synchronize limited number of threads. i.e. If you execute the following with 600 threads:
func1...
The character encoding of the HTML document was not declared
...file:
<!DOCTYPE html PUBLIC"-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>insert page</title>...
How do I make HttpURLConnection use a proxy?
...ctively. The following basic example illustrates it:
String url = "http://www.google.com/",
proxy = "proxy.mydomain.com",
port = "8080";
URL server = new URL(url);
Properties systemProperties = System.getProperties();
systemProperties.setProperty("http.proxyHost",proxy);
systemPropert...
Why unsigned integer is not available in PostgreSQL?
...d types. However I would suggest to use domains for unsigned types.
http://www.postgresql.org/docs/9.4/static/sql-createdomain.html
CREATE DOMAIN name [ AS ] data_type
[ COLLATE collation ]
[ DEFAULT expression ]
[ constraint [ ... ] ]
where constraint is:
[ CONSTRAINT constraint_name...