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How do you move a file?
...just realized it probably didn't work because I hadn't added/committed the new directory yet
– Joe Phillips
Jul 12 '11 at 21:49
...
Making Maven run all tests, even when some fail
...unction () {
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...
Does SVG support embedding of bitmap images?
...s:xlink="http://www.w3.org/1999/xlink">
...
<image
width="100" height="100"
xlink:href="data:image/png;base64,IMAGE_DATA"
/>
...
</svg>
The svg element attribute xmlns:xlink declares xlink as a namespace prefix and says where the definition is. Th...
difference between foldLeft and reduceLeft in Scala
...reduceLeft(op: (T,T)=>T) : T = this match{
case Nil => throw new Error("Nil.reduceLeft")
case x :: xs => (xs foldLeft x)(op)
}
def foldLeft[U](z: U)(op: (U,T)=>U): U = this match{
case Nil => z
case x :: xs => (xs foldLeft op(z, x))(op)
}
}
Note that ...
After array_filter(), how can I reset the keys to go in numerical order starting at 0
...
If you are using Array filter do it as follows
$NewArray = array_values(array_filter($OldArray));
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Are Java static initializers thread safe?
...
static class SingletonHolder {
static final Singleton INSTANCE = new Singleton();
}
public static Singleton instance() {
return SingletonHolder.INSTANCE;
}
}
As the static block in SingletonHolder will run once in a thread safe manner you don't need any other locking. The ...
How do I add a library project to Android Studio?
...full process of adding external Android library to our project:
Create a new project via Android Studio creator. I named it HelloWorld.
Here is the original project structure created by Android Studio:
HelloWorld/
app/
- build.gradle // local Gradle configuration (for app only...
How to switch a user per task or set of tasks?
... the task-scoped become and become_user directives, Ansible 1.9 added some new variables and command line options to set these values for the duration of a play in the absence of explicit directives:
Command line options for the equivalent become/become_user directives.
Connection specific variabl...
What happens to a detached thread when main() exits?
...Unless you've unwound your stack at this point, it's hard to see how to avoid undefined behaviour.
The answer to the second question "can detached threads ever be joined again" is:
Yes, with the *_at_thread_exit family of functions (notify_all_at_thread_exit(), std::promise::set_value_at_thread_ex...
Why can't a 'continue' statement be inside a 'finally' block?
...tem in list)
{
try
{
throw new Exception("What now?");
}
finally
{
continue;
}
}
}
catch
{
//do I get hit?
}
}
The Dreaded Goto
public static void Goto()...