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Scala type programming resources
...he various abstract type fields
Often, these subtraits will be parameterized with arguments. In the lambda calculus example, the subtypes are trait App extends Lambda which is parameterized with two types (S and T, both must be subtypes of Lambda), trait Lam extends Lambda parameterized with one t...
Reference: Comparing PHP's print and echo
...as opcode handlers. Consider a simple action such as displaying the number zero. Whether you use echo or print, the same handler " ZEND_ECHO_SPEC_CONST_HANDLER" will be invoked. The handler for print does one thing before it invokes the handler for echo, it makes sure that the return value for pri...
Multiprocessing - Pipe vs Queue
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How to use Swift @autoclosure
...Rishi
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answered Jun 8 '14 at 5:28
eddie_ceddie_c
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What GRANT USAGE ON SCHEMA exactly do?
... J_H
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answered Jun 27 '13 at 23:45
Craig RingerCraig Ringer
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How exactly do Django content types work?
...ow you will be using it 9 out of 10 times in my opinion.
Generic relationizers(?) beware!
A rather large caveat is that when you use a GenericRelation, if the model which has the GenericRelation applied (Picture) is deleted, all related (Comment) objects will also be deleted. Or at least as of the...
Transitioning from Windows Forms to WPF
...What is this "DataContext" you speak of?
A Simple MVVM Example
To summarize, the biggest difference between Winforms and WPF is that in WPF your data layer (the DataContext) is your application, while in Winforms your UI layer is your application.
To look at it another way, with WPF your applicat...
Different types of thread-safe Sets in Java
...g at this time continue with the old array, avoiding necessity of synchronization between readers and writers (though writing itself needs to be synchronized). The normally fast set operations (especially contains()) are quite slow here, as the arrays will be searched in linear time.
Use this only ...
Ignoring time zones altogether in Rails and PostgreSQL
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The data type timestamptz is the short name for timestamp with time zone.
The other option timestamp is short for timestamp without time zone.
timestamptz is the preferred type in the date/time family, literally. It has typispreferred set in pg_type...
What is the difference between active and passive FTP?
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