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Linq to Entities join vs groupjoin
...ts as Id values in a fixed order. Let's use:
var ids = new[] { 3,7,2,4 };
Now the selected parents must be filtered from the parents list in this exact order.
If we do ...
var result = parents.Where(p => ids.Contains(p.Id));
... the order of parents will determine the result. If the parents are...
How can I increment a date by one day in Java?
...ATE, 1); // number of days to add
dt = sdf.format(c.getTime()); // dt is now the new date
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Is there a pattern for initializing objects created via a DI container
...my objects and I want to have some initialization parameters that are not known until run-time:
5 Answers
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Why would I ever use push_back instead of emplace_back?
...mplace_back miss the full picture.
Last year, I gave a presentation at C++Now on Type Deduction in C++14. I start talking about push_back vs. emplace_back at 13:49, but there is useful information that provides some supporting evidence prior to that.
The real primary difference has to do with impl...
What is Double Brace initialization in Java?
... }});
}};
return source;
}
}
The returned Map will now contain a reference to the enclosing instance of ReallyHeavyObject. You probably don't want to risk that:
Image from http://blog.jooq.org/2014/12/08/dont-be-clever-the-double-curly-braces-anti-pattern/
3. You can pret...
What's the advantage of a Java enum versus a class with public static final fields?
...");. I change the signature of Foo::bar to public void bar(String foobar). Now the person who called someFoo will need to modify their code if they still want it to work.
– Jeffrey
Jul 15 '15 at 16:09
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Multiple inheritance/prototypes in JavaScript
...Update (2019): The original post is getting pretty outdated. This article (now internet archive link, since domain went away) and its associated GitHub library are a good modern approach.
Original post:
Multiple inheritance [edit, not proper inheritance of type, but of properties; mixins] in Javasc...
How do you run NUnit tests from Jenkins?
...XMLs, enter nunit-result.xml
Once you project has been built, NUNit will now run and the results will be viewable either on the Dashboard(if you hover over the Weather report icon) or on the project page under Last Test Result.
You could also run the command from within Visual Studio or as part o...
Why doesn't Java allow generic subclasses of Throwable?
...
Oh, now I get it. My solution would cause problems with RuntimeExceptions, which don't have to be declared. So if SomeExc is a subclass of RuntimeException, I could throw and explicitly catch SomeExc<Integer>, but maybe som...
How do I check if a string contains a specific word?
...s "falsey", we can't use simpler constructs like !strpos($a, 'are').
Edit:
Now with PHP 8 you can do this:
if (str_contains('How are you', 'are')) {
echo 'true';
}
RFC
str_contains
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