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Textarea onchange detection
... that you should be using keyup, not keydown for this: keydown seems to be called before the change is actually made to the textarea, so you'll be using the wrong length (and you don't really know how off you are: could be typing or deleting, and could have text selected meaning it's more than just ...
Check if application is on its first run [duplicate]
...PREF_VERSION_CODE_KEY, currentVersionCode).apply();
}
You would probably call this method from onCreate in your main activity so that it is checked every time your app starts.
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceStat...
ASP.NET web.config: configSource vs. file attributes
...l settings being merged back into the main .config on a Configuration.Save call.
since .NET 1.1
Exception is not thrown if file does not exist.
configSource attribute
can apply to most sections of a configuration file, not just appSettings
will override the entire section with the external file,...
“Debug only” code that should run only when “turned on”
...
meh. I wouldn't call this lengthy just because you add two more lines of preprocessor directive.
– KeithS
Feb 22 '11 at 18:40
...
How to join NSArray elements into an NSString?
...rmsterror : forgot to mention this code was for ARC. Also, the mutablecopy call is the modern objective-c convention for creating mutable version of objects using @-syntax ( such as [@[] mutablecopy] for a mutable nsarray). don't know what a difference it makes performance wise.
...
How to get a cross-origin resource sharing (CORS) post request working
...w the response to continue. You need to ensure the response header specifically includes the required headers. ie:
Access-Control-Allow-Headers: x-requested-with
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...
Why use try {} finally {} with an empty try block?
...y-try-block-mystery/:
This methodology guards against a
Thread.Abort call interrupting the
processing. The MSDN page of
Thread.Abort says that “Unexecuted
finally blocks are executed before the
thread is aborted”. So in order to
guarantee that your processing
finishes even if y...
Database sharding vs partitioning
... databases. Sharding is one specific type of partitioning, part of what is called horizontal partitioning.
Here you replicate the schema across (typically) multiple instances or servers, using some kind of logic or identifier to know which instance or server to look for the data. An identifier of t...
_DEBUG vs NDEBUG
...lar as This is the same as the Standard C library.
In C89 (C programmers called this standard as standard C) in "4.2 DIAGNOSTICS" section it was said
http://port70.net/~nsz/c/c89/c89-draft.html
If NDEBUG is defined as a macro name at the point in the source file
where is included, the ...
How to use the same C++ code for Android and iOS?
...ring;
}
@end
This class has the responsibility to convert CPP types and calls to Obj-C types and calls. It is not mandatory once you can call CPP code on any file you want on Obj-C, but it helps to keep the organisation, and outside your wrapper files you maintain a complete Obj-C styled code, on...