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Detect when an image fails to load in Javascript
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So short and so useful! In order to just hide it: <img src="your/path/that/might/fail.png" onerror="$(this).hide();"/>
– J0ANMM
Mar 23 '18 at 10:17
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Is there a way to iterate over a slice in reverse in Go?
... intended for. Don't use this since it can have nasty side effects (out of order execution). Just use the for loop in the accepted answer. Go is aiming to minimize this kind of clever (not) hacks since they tend to bite you in the ass later on.
– RickyA
Oct 24 ...
Entity Framework 5 Updating a Record
... the database. Its probably better to do this with view models, though, in order to avoid repeating sets of properties. I haven't done that yet because I don't know how to avoid bringing the validation messages on my view model validators into my domain project.
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XmlSerializer giving FileNotFoundException at constructor
...ms code generation nor does it perform compilation with the C# compiler in order to create a serializer assembly at runtime, unless explicitly forced to by setting a configuration file setting (useLegacySerializerGeneration). This change removes the dependency on csc.exe and improves startup perform...
inject bean reference into a Quartz job in Spring?
..., along with pre-configured Triggers and jobs that extend QuartzJobBean in order to enable dependency injection? The problem with this approach is that the triggers are defined statically in the Spring's config files, where I need to be able to define triggers with dynamic schedules at run time... S...
How do I use sudo to redirect output to a location I don't have permission to write to?
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You'll want to do 'sudo -E ...' in order to use variables in the shelled out command (when using this in a script, for instance).
– Urhixidur
Feb 14 '14 at 21:28
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Why do we need extern “C”{ #include } in C++?
...s all named foo:
A::foo()
B::foo()
C::foo(int)
C::foo(std::string)
In order to differentiate between them all, the C++ compiler will create unique names for each in a process called name-mangling or decorating. C compilers do not do this. Furthermore, each C++ compiler may do this is a differ...
How can i query for null values in entity framework?
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Since Entity Framework 5.0 you can use following code in order to solve your issue:
public abstract class YourContext : DbContext
{
public YourContext()
{
(this as IObjectContextAdapter).ObjectContext.ContextOptions.UseCSharpNullComparisonBehavior = true;
}
}
This shou...
Easy way to concatenate two byte arrays
...go back and edit the line where you create the result byte array. Also, re-ordering the arrays is simple, unlike using the arraycopy method.
– Wayne Uroda
Aug 27 '12 at 11:38
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COUNT DISTINCT with CONDITIONS
...ed the entryID condition in the left join rather than in a where clause in order to make sure that any items that only have a entryID of 0 get properly counted in the first DISTINCT.
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