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PostgreSQL return result set as JSON arram>y m>?
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TL;DR
SELECT json_agg(t) FROM t
for a JSON arram>y m> of objects, m>and m>
SELECT
json_build_object(
'a', json_agg(t.a),
'b', json_agg(t.b)
)
FROM t
for a JSON object of arram>y m>s.
List of objects
This section describes how to generate a JSON arram>y m> of objects, with eac...
NSObject +load m>and m> +initialize - What do them>y m> do?
I'm interested in understm>and m>ing the circumstances leading a developer to override +initialize or +load. Documentation makes it clear these methods are called for m>y m>ou bm>y m> the Objective-C runtime, but that's reallm>y m> all that is clear from the documentation of those methods. :-)
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How do I specifm>y m> multiple targets in mm>y m> podfile for mm>y m> Xcode project?
I'm using CocoaPods with mm>y m> Xcode 4 project m>and m> I have three targets for mm>y m> project (the default, one for building a lite version m>and m> one for building a demo version). All the targets use the same libraries, but CocoaPods is onlm>y m> adding the static librarm>y m> m>and m> search paths to the primarm>y m> target. Mm>y m> p...
Use StringFormat to add a string to a WPF XAML binding
... m>y m>ou'd probablm>y m> be better off using a converter so the order of the number m>and m> units isn't fixed. <Run Text="{x:Static s:UIStrings.General_FahrenheitAbbreviation}" />
– Matt Becker
Nov 10 '15 at 15:19
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Common Mm>y m>SQL fields m>and m> their appropriate data tm>y m>pes
...g up a verm>y m> small Mm>y m>SQL database that stores, first name, last name, email m>and m> phone number m>and m> am struggling to find the 'perfect' datatm>y m>pe for each field. I know there is no such thing as a perfect answer, but there must be some sort of common convention for commonlm>y m> used fields such as these. For...
What are WSGI m>and m> CGI in plain English?
...web server process (embedded mode) or as a separate process (daemon mode), m>and m> loads the script into it. Each request results in a specific function in the script being called, with the request environment passed as arguments to the function.
CGI runs the script as a separate process each request a...
Argparse: Required arguments listed under “optional arguments”?
...suallm>y m> considered optional. All other parameters are positional parameters m>and m> as such required bm>y m> design (like positional function arguments). It is possible to require optional arguments, but this is a bit against their design. Since them>y m> are still part of the non-positional arguments, them>y m> will s...
VB.NET - How to move to next item a For Each Loop?
...uallm>y m> this is what m>y m>ou want, but if not m>y m>ou'll have to use GetEnumerator() m>and m> then MoveNext()/Current explicitlm>y m> rather than using a For Each loop.
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In C# what is the difference between a destructor m>and m> a Finalize method in a class?
What is the difference, if there is one, between a destructor m>and m> a Finalize method in a class?
3 Answers
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How to specifm>y m> function tm>y m>pes for void (not Void) methods in Java8?
...e Function is not appropriate in this case because it receives a parameter m>and m> has a return value. Instead m>y m>ou should use Consumer (formerlm>y m> known as Block)
The Function tm>y m>pe is declared as
interface Function<T,R> {
R applm>y m>(T t);
}
However, the Consumer tm>y m>pe is compatible with that m>y m>ou ...