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Understanding implicit in Scala
...t on a method can be marked implicit, which means the values will be taken from the context in which they are called. If there is no implicit value of the right type in scope, it will not compile. Since the implicit value must resolve to a single value and to avoid clashes, it's a good idea to make ...
How to generate a random string in Ruby
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BTW SecureRandom was removed from ActiveSupport in version 3.2. From the changelog: "Removed ActiveSupport::SecureRandom in favor of SecureRandom from the standard library".
– Marc
Jan 20 '12 at 21:57
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Re-raise exception with a different type and message, preserving existing information
... exception hierarchy for the exceptions that it can raise (e.g. inheriting from a FooError abstract class for all the foo module's specific exceptions). This allows users of the module to catch those particular exceptions and handle them distinctly, if needed. But many of the exceptions raised f...
Unix command to find lines common in two files
I'm sure I once found a unix command which could print the common lines from two or more files, does anyone know its name? It was much simpler than diff .
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Sort an Array by keys based on another Array?
...ou give it (in the proper order) and overwriting/adding the keys with data from your actual array:
$customer['address'] = '123 fake st';
$customer['name'] = 'Tim';
$customer['dob'] = '12/08/1986';
$customer['dontSortMe'] = 'this value doesnt need to be sorted';
$properOrderedArray = array_merge(ar...
What is the best way to test for an empty string in Go?
...h2_bundle.go (line 2702). It is not automatically shown as it is generated from golang.org/x/net/http2, I believe.
– ANisus
May 15 '17 at 18:58
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remove all variables except functions
...side note, I'll be darned if I can figure the difference between those two from their documentation).
– Josh O'Brien
Nov 29 '11 at 17:04
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How do you organize your version control repository?
... project anywhere in source control, as long as you preserve the structure from the project root directory on down
-- build each project anywhere on any machine, with minimum risk and minimum preparation
-- build each project completely stand-alone, as long as you have access to its binary depende...
How to retrieve the dimensions of a view?
...ded this code into my onCreate() method:
EDITED: 07/05/11 to include code from comments:
final TextView tv = (TextView)findViewById(R.id.image_test);
ViewTreeObserver vto = tv.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
@Override
public void onGloba...
Using logging in multiple modules
...program code
if __name__ == '__main__':
main()
See here for logging from multiple modules, and here for logging configuration for code which will be used as a library module by other code.
Update: When calling fileConfig(), you may want to specify disable_existing_loggers=False if you're usi...