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Is “IF” expensive?
...ways taken. Conditional branches show up in if statements and the control tests of for and while loops. Unconditional branches show up in infinite loops, function calls, function returns, break and continue statements, the infamous goto statement, and many more (these lists are far from exhaustive...
When should I use a table variable vs temporary table in sql server?
...e some suggestions are below (though the most reliable method is to simply test both with your specific workload).
If you need an index that cannot be created on a table variable then you will of course need a #temporary table. The details of this are version dependant however. For SQL Server 2012...
String literals and escape characters in postgresql
...cated the text needed to be preceded with 'E', as such:
insert into EscapeTest (text) values (E'This is the first part \n And this is the second');
This suppressed the warning, but the text was still not being returned correctly. When I added the additional slash as Michael suggested, it worked.
...
i18n Pluralization
...gt; 4) %>
Updated answer for languages with multiple pluralization (tested with Rails 3.0.7):
File config/initializers/pluralization.rb:
require "i18n/backend/pluralization"
I18n::Backend::Simple.send(:include, I18n::Backend::Pluralization)
File config/locales/plurals.rb:
{:ru =>
...
“Origin null is not allowed by Access-Control-Allow-Origin” error for request made by application ru
... trying to do a cross-domain XMLHttpRequest via CORS...
Make sure you're testing via http://. Scripts running via file:// have limited support for CORS.
Make sure the browser actually supports CORS. (Opera and Internet Explorer are late to the party)
...
Return string without trailing slash
...getting issue of str.slice(0, -1) branch not covered for this line on unit test. How to fix that?
– Bijay Rai
Jun 26 at 3:12
1
...
Why is `std::move` named `std::move`?
...).
So what does move do in terms of generated object code?
Consider this test:
void
test(int& i, int& j)
{
i = j;
}
Compiled with clang++ -std=c++14 test.cpp -O3 -S, this produces this object code:
__Z4testRiS_: ## @_Z4testRiS_
.cfi_startproc
## BB#0:...
How to elegantly deal with timezones
...Note that there isn't a binary distribution, you'll have to download the latest version and compile it yourself.
At the time of this writing, it currently parses all of the files in the latest data distribution (I actually ran it against the ftp://elsie.nci.nih.gov/pub/tzdata2011k.tar.gz file on Se...
Determine installed PowerShell version
...ailed on PowerShell.com in Which PowerShell Version Am I Running.
$isV2 = test-path variable:\psversiontable
The same site also gives a function to return the version:
function Get-PSVersion {
if (test-path variable:psversiontable) {$psversiontable.psversion} else {[version]"1.0.0.0"}
}
...
How to check edittext's text is email address or not?
...inName: checks that field contains a valid domain name ( always passes the test in API Level < 8 )
ipAddress: checks that the field contains a valid ip address
webUrl: checks that the field contains a valid url ( always passes the test in API Level < 8 )
nocheck: It does not check anything. (D...