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What is the meaning of erb?
...".js.erb" or ".rxml" to ".xml.erb"
This format separates out content type from template engine which is "erb" in this case.
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When should we call System.exit in Java
...lease other resources. If there are no other non-daemon threads, returning from main will shut down the JVM and will call the shutdown hooks.
For some reason shutdown hooks seem to be an undervalued and misunderstood mechanism, and people are reinventing the wheel with all kind of proprietary custo...
Creating an array of objects in Java
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I had this confusion too, since I am from C++ background I always assumed that like in C++ Java's new keyword also calls the constructor and allocates the I memory. I guess in Java new only creates the references not the actual object as compared to C++. Thanks ...
BeautifulSoup Grab Visible Webpage Text
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Try this:
from bs4 import BeautifulSoup
from bs4.element import Comment
import urllib.request
def tag_visible(element):
if element.parent.name in ['style', 'script', 'head', 'title', 'meta', '[document]']:
return False
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Downcasting shared_ptr to shared_ptr?
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I didn't understand from the first line that he's not using std::shared_ptr. But from the comments of the first answer I inferred that he's not using boost, so he may be using std::shared_ptr.
– Massood Khaari
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How to turn on WCF tracing?
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The following configuration taken from MSDN can be applied to enable tracing on your WCF service.
<configuration>
<system.diagnostics>
<sources>
<source name="System.ServiceModel"
switchValue="Information, Acti...
How do I make my GUI behave well when Windows font scaling is greater than 100%
...file was last saved.
const
SmallFontsPixelsPerInch = 96;
function ScaleFromSmallFontsDimension(const X: Integer): Integer;
begin
Result := MulDiv(X, Screen.PixelsPerInch, SmallFontsPixelsPerInch);
end;
So, continuing the theme, another thing to be wary of is that if your project is developed...
Ternary operator is twice as slow as an if-else block?
...llows the X64 JIT to perform the inner loop entirely using registers aside from loading i from the array, while the X86 JIT places several stack operations (memory access) in the loop.
value is a 64-bit integer, which requires 2 machine instructions on X86 (add followed by adc) but only 1 on X64 (ad...
Insert Update stored proc on SQL Server
...optimal way to do it and it's called upsert/merge.
Importance of UPSERT - from sqlservercentral.com:
For every update in the case mentioned above we are removing one
additional read from the table if we
use the UPSERT instead of EXISTS.
Unfortunately for an Insert, both the
UPSERT and ...
How to detect internet speed in JavaScript?
...ctive bandwidth estimate in Mbits per sec. The browser makes this estimate from recently observed application layer throughput across recently active connections. Needless to say, the biggest advantage of this approach is that you need not download any content just for bandwidth/ speed calculation.
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