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Python append() vs. + operator on lists, why do these give different results?
...hod which concatenates its sequence argument with the subject list. Specifically, it appends each of the elements of sequence in iteration order.
An aside
Being an operator, + returns the result of the expression as a new value. Being a non-chaining mutator method, list.extend() modifies the subject...
Update R using RStudio
...tall a new version of R from the official website.
RStudio should automatically start with the new version when you relaunch it.
In case you need to do it manually, in RStudio, go to :Tools -> options -> General.
Check @micstr's answer for a more detailed walkthrough.
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Static Indexers?
...gt; new object();
set => // set something
}
}
Now you can call Utilities.ConfigurationManager["someKey"] using indexer notation.
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Tools to search for strings inside files without indexing [closed]
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There is also a Windows built-in program called findstr.exe with which you can search within files.
>findstr /s "provider=sqloledb" *.cs
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“register” keyword in C?
...n a processor register if possible.
Most modern compilers do that automatically, and are better at picking them than us humans.
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Does Python have an ordered set?
... I'm pretty sure you're not allowed to have two methods both called union in the same class. The last one will "win" and the first one will fail to exist at runtime. This is because OrderedSet.union (no parens) has to refer to a single object.
– Kevin
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In HTML5, should the main navigation be inside or outside the element?
In HTML5, I know that <nav> can be used either inside or outside the page's masthead <header> element. For websites having both secondary and main navigation, it seems common to include the secondary navigation as a <nav> element inside the masthead <header> element ...
How to reference constants in EL?
..."com.example.YourConstants" />
Or adding an EL context listener which calls ImportHandler#importClass() as below:
@ManagedBean(eager=true)
@ApplicationScoped
public class Config {
@PostConstruct
public void init() {
FacesContext.getCurrentInstance().getApplication().addELConte...
Do I need to convert .CER to .CRT for Apache SSL certificates? If so, how?
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Basically there are two CER certificate encoding types, DER and Base64. When type DER returns an error loading certificate (asn1 encoding routines), try the PEM and it shall work.
openssl x509 -inform DER -in certificate.cer -ou...
Resolving MSB3247 - Found conflicts between different versions of the same dependent assembly
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Mike Hadlow has posted a little console app called AsmSpy that rather nicely lists each assembly's references:
Reference: System.Net.Http.Formatting
4.0.0.0 by Shared.MessageStack
4.0.0.0 by System.Web.Http
Reference: System.Net.Http
2.0.0.0 b...