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Why does pattern matching in Scala not work with variables?
...atch {
case `target` => println("It was" + target)
case _ => println("It was something else")
}
}
def mMatch2(s: String) = {
val Target: String = "a"
s match {
case Target => println("It was" + Target)
case _ => println("It was something else"...
Bash: Copy named files recursively, preserving folder structure
... You can also use the -C option to do the chdir for you - tar cf - _files_ | tar -C /dest xf - or something like that.
– D.Shawley
Oct 30 '09 at 15:05
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Random / noise functions for GLSL
As the GPU driver vendors don't usually bother to implement noiseX in GLSL, I'm looking for a "graphics randomization swiss army knife" utility function set, preferably optimised to use within GPU shaders. I prefer GLSL, but code any language will do for me, I'm ok with translating it on my own ...
How to delete a file or folder?
...mdir() removes an empty directory.
shutil.rmtree() deletes a directory and all its contents.
Path objects from the Python 3.4+ pathlib module also expose these instance methods:
pathlib.Path.unlink() removes a file or symbolic link.
pathlib.Path.rmdir() removes an empty directory.
...
Disabling Minimize & Maximize On WinForm?
....
If you want to ever actually close the form, make a class-wide boolean _close and, in your handler, set e.Cancel to !_close, so that whenever the user clicks the X on the window, it doesn't close, but you can still close it (without just killing it) with close = true; this.Close();
(And just to...
Set variable in jinja
...
Nice shorthand for Multiple variable assignments
{% set label_cls, field_cls = "col-md-7", "col-md-3" %}
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Is it possible to make anonymous inner classes in Java static?
... a reference to the pointer of the containing instance (they are also not called inner classes anymore, they are called nested classes).
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Easiest way to toggle 2 classes in jQuery
... with the other on (say..) the container. You can guess the other by using _.without() on the array:
$mycontainer.removeClass(_.without(types, type)[0]).addClass(type);
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How to use MDC with thread pools?
....util.Timer classes along with some self-rolled async execution services. All these services manage their own thread pool.
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Why does Oracle 9i treat an empty string as NULL?
...r exists but is not known by the user, data where there is no answer, etc. all of which constitute some sense of NULL).
By the time that the SQL standard came around and agreed that NULL and the empty string were distinct entities, there were already Oracle users that had code that assumed the two ...