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Difference between “or” and || in Ruby? [duplicate]
What's the difference between the or and || operators in Ruby? Or is it just preference?
8 Answers
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Where do “pure virtual function call” crashes come from?
I sometimes notice programs that crash on my computer with the error: "pure virtual function call".
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get current url in twig template?
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{{ path(app.request.attributes.get('_route'),
app.request.attributes.get('_route_params')) }}
If you want to read it into a view variable:
{% set currentPath = path(app.request.attributes.get('_route'),
app.request.attr...
What is the single most influential book every programmer should read? [closed]
If you could go back in time and tell yourself to read a specific book at the beginning of your career as a developer, which book would it be?
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What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]
The sample code below occurred naturally. Suddenly my code thew a very nasty-sounding FatalExecutionEngineError exception. I spent a good 30 minutes trying to isolate and minimize the culprit sample. Compile this using Visual Studio 2012 as a console app:
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How can I restart a Java application?
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Of course it is possible to restart a Java application.
The following method shows a way to restart a Java application:
public void restartApplication()
{
final String javaBin = System.getProperty("java.home") + File.separator + "bin" + File.separator + "java";
final File currentJar = ne...
How to get height of entire document with JavaScript?
...e documents I can't get the height of the document (to position something absolutely at the very bottom). Additionally, a padding-bottom on seems to do nothing on these pages, but do on the pages where height will return. Case(s) in point:
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Correct use of flush() in JPA/Hibernate
I was gathering information about the flush() method, but I'm not quite clear when to use it and how to use it correctly. From what I read, my understanding is that the contents of the persistence context will be synchronized with the database, i. e. issuing outstanding statements or refreshing enti...
How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?
In a recent interview, I was asked a really strange question. The interviewer asked me how can I compute 1+2+3+...+1000 just using compiler features. This means that I am not allowed to write a program and execute it, but I should just write a program that could drive the compiler to compute this su...
Usages of Null / Nothing / Unit in Scala
I've just read: http://oldfashionedsoftware.com/2008/08/20/a-post-about-nothing/
8 Answers
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