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vs in Generics
What is the difference between <out T> and <T> ? For example:
5 Answers
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What does git rev-parse do?
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git rev-parse is an ancillary plumbing command primarily used for manipulation.
One common usage of git rev-parse is to print the SHA1 hashes given a revision specifier. In addition, it has various options to format this output such as --short for printing ...
How to alias a table in Laravel Eloquent queries (or using Query Builder)?
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Laravel supports aliases on tables and columns with AS. Try
$users = DB::table('really_long_table_name AS t')
->select('t.id AS uid')
->get();
Let's see it in action with an awesome tinker tool
$ php artisan tinker
[1] > Schema::cre...
background:none vs background:transparent what is the difference?
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There is no difference between them.
If you don't specify a value for any of the half-dozen properties that background is a shorthand for, then it is set to its default value. none and transparent are the defaults.
One explicitly sets the background-image t...
Nullable type issue with ?: Conditional Operator
Could someone explain why this works in C#.NET 2.0:
5 Answers
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Difference between web reference and service reference?
...allows your code to talk to a Web Service that is described via WSDL and communicates via SOAP or HTTP GET (other posters indicate that it is only ASMX, but Web References can also talk to Java-based Web Services or Python-based or Ruby so long as they all talk WSDL and conform to the WS-I interoper...
C#: Raising an inherited event
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In your base class (where you have declared the events), create protected methods which can be used to raise the events:
public class MyClass
{
public event EventHandler Loading;
public event EventHandler Finished;
protected virtual void OnLoading(EventArgs e)
{
EventHandler ha...
Android SharedPreference security
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Shared Preferences are stored as a file in the filesystem on the device. They are, by default, stored within the app's data directory with filesystem permissions set that only allow the UID that the specific application runs with to access them. So, they are private in so much as ...
How can sbt pull dependency artifacts from git?
I've heard (and I know I've seen examples too, if only I can remember where) that sbt can obtain dependencies from a git repo.
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How to hide output of subprocess in Python 2.7
I'm using eSpeak on Ubuntu and have a Python 2.7 script that prints and speaks a message:
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