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Why covariance and contravariance do not support value type
...is in fact a subtype of object (an alias of System.Object). In fact, int's base class is System.ValueType who's base class is System.Object. Try evaluating the following expression and see: typeof(int).BaseType.BaseType. The reason ReferenceEquals returns false here is that the int is boxed into two...
C# if/then directives for debug vs release
...uge fan of the #if stuff, especially if you spread it all around your code base as it will give you problems where Debug builds pass but Release builds fail if you're not careful.
So here's what I have come up with (inspired by #ifdef in C#):
public interface IDebuggingService
{
bool RunningIn...
JAXB creating context and marshallers cost
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great answer. I can be confident now based on your experience as lead on JAXB.
– Vladimir
Sep 13 '11 at 12:22
7
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Are HTML Image Maps still used?
...ratio, and then using javascript to overwrite the coordinates. The jquery based image size event handler is $(window).resize(function() { ....yourcode... });
– skidadon
Aug 11 '15 at 3:44
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How to loop through a directory recursively to delete files with certain extensions
...ur filenames, then that won't work either. You're better off with an xargs based solution:
find /tmp \( -name '*.pdf' -or -name '*.doc' \) -print0 | xargs -0 rm
(The escaped brackets are required here to have the -print0 apply to both or clauses.)
GNU and *BSD find also has a -delete action, whi...
Are fluid websites worth making anymore? [closed]
...
Text based apps: No. Table based apps: Yes.
Pros of fluid layouts
People with big monitors gets to use their screen real estate.
Easier for users with big monitors when you have a lot of information on your page.
Cons of flui...
C# Object Pooling Pattern implementation
...Core
The dotnet core has an implementation of object pooling added to the base class library (BCL). You can read the original GitHub issue here and view the code for System.Buffers. Currently the ArrayPool is the only type available and is used to pool arrays. There is a nice blog post here.
names...
How do I set up DNS for an apex domain (no www) pointing to a Heroku app?
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(Note: root, base, apex domains are all the same thing. Using interchangeably for google-foo.)
Traditionally, to point your apex domain you'd use an A record pointing to your server's IP. This solution doesn't scale and isn't viable for ...
Why is it necessary to set the prototype constructor?
... but it does have its uses. Suppose we wanted to make a copy method on the base Person class. Like this:
// define the Person Class
function Person(name) {
this.name = name;
}
Person.prototype.copy = function() {
// return new Person(this.name); // just as bad
return new this.con...
Streaming video from Android camera to server
...ting/figuring out), but so far I can only get it to connect from a Windows based browser (Chrome) with the vlc plugin. VLC on Android/iPad or any other rtsp player won't pick up the stream (one of them looked good, but was trying to get a stream based on the device name, which this code returned as ...