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Difference between Observer, Pub/Sub, and Data Binding
...provides notifications, and the observer receives those notifications. In .net, the observable can expose an event and the observer subscribes to that event with an "event handler" shaped hook. No assumptions are made about the specific mechanism which notifications occur, nor about the number of ob...
What does “program to interfaces, not implementations” mean?
...ng as the interface does not change.
Libraries like the Java API and the .NET Framework make heavy use of interfaces because millions of programmers use the objects provided. The creators of these libraries have to be very careful that they do not change the interface to the classes in these librar...
What is the difference between a URI, a URL and a URN?
...ng the resource by describing its primary access mechanism
(e.g., its network "location"). The term "Uniform Resource Name"
(URN) has been used historically to refer to both URIs under the
"urn" scheme [RFC2141], which are required to remain globally unique
and persistent even w...
Understanding events and event handlers in C#
...thin a method.
SomethingHappened("bar");
(*This is the key to events in .NET and peels away the "magic" - an event is really, under the covers, just a list of methods of the same "shape". The list is stored where the event lives. When the event is "raised", it's really just "go through this list o...
What is Unicode, UTF-8, UTF-16?
..., and since HTML5, it has been the recommended encoding. Conversely, both .NET and Java environments are founded on a UTF-16 character type. Confusingly (and incorrectly), references are often made to the "Unicode encoding", which usually refers to the dominant UTF encoding in a given environment.
...
Sending files using POST with HttpURLConnection
... order to make the Android platform happy, because it doesn't like to have network requests on the main thread.
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Improving bulk insert performance in Entity framework [duplicate]
...tom stored procedure accepting table valued parameter but you need raw ADO.NET for that.
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What are the disadvantages of using persistent connection in PDO
...
In response to Charles' problem above,
From : http://www.php.net/manual/en/mysqli.quickstart.connections.php -
A common complain about persistent connections is that their state is not reset before reuse. For example, open and unfinished transactions are not automatically rolled back....
Why can't the C# constructor infer type?
...ient to have a feature implemented. Not only does the feature have to be a net win, it has to be a large net win compared to all the other possible features we could be investing in. It also has to be better than spending that time and effort on bug fixing, performance work, and other possible areas...
Javascript when to use prototypes
... come before calling a new Car() as illustrated in this jsfiddle: jsfiddle.net/mxacA . As for your argument, this would be the correct way to do it: jsfiddle.net/Embnp . Funny thing is, i don't remember answering this question =)
– hellatan
Sep 17 '12 at 21:00...