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Hidden Features of C#? [closed]
...to automagically instantiate collections for me.
private IList<Foo> _foo;
public IList<Foo> ListOfFoo
{ get { return _foo ?? (_foo = new List<Foo>()); } }
share
...
iPhone: Detecting user inactivity/idle time since last screen touch
...f the screen receives a touch, the timer is reset.
override func sendEvent(_ event: UIEvent) {
super.sendEvent(event)
if idleTimer != nil {
self.resetIdleTimer()
}
if let touches = event.allTouches {
for touch in touches {
if touch.phase == UITouchPhase....
How do you rename a MongoDB database?
...
You could do this:
db.copyDatabase("db_to_rename","db_renamed","localhost")
use db_to_rename
db.dropDatabase();
Editorial Note: this is the same approach used in the question itself but has proven useful to others regardless.
...
What is the difference between re.search and re.match?
...
Now, enough talk. Time to see some example code:
# example code:
string_with_newlines = """something
someotherthing"""
import re
print re.match('some', string_with_newlines) # matches
print re.match('someother',
string_with_newlines) # won't match
print re.match('^someother', s...
Uploading both data and files in one form using Ajax?
...pload data and files with one form using ajax.
PHP + HTML
<?php
print_r($_POST);
print_r($_FILES);
?>
<form id="data" method="post" enctype="multipart/form-data">
<input type="text" name="first" value="Bob" />
<input type="text" name="middle" value="James" />
...
Moq: Invalid setup on a non-overridable member: x => x.GetByTitle(“asdf”)
...ked virtual. In your comment, I understand it so that the instantiating of _mockArticleDao is done something like this:
_mockArticleDao = new Mock<ArticleDAO>();
If you want to keep it as so, you need to mark the GetArticle method virtual:
public class ArticleDAO : GenericNHibernateDAO(IA...
Android ViewPager - Show preview of page on left and right
...em visible
val nextItemVisiblePx = resources.getDimension(R.dimen.viewpager_next_item_visible)
val currentItemHorizontalMarginPx = resources.getDimension(R.dimen.viewpager_current_item_horizontal_margin)
val pageTranslationX = nextItemVisiblePx + currentItemHorizontalMarginPx
val pageTransformer = V...
Difference between Property and Field in C# 3.0+
... in several ways. For example:
class Person: IPerson
{
private string _name;
public string FirstName
{
get
{
return _name ?? string.Empty;
}
set
{
if (value == null)
throw new System.ArgumentNullException("v...
Getting current device language in iOS?
...the header information from NSLocale.h:
+ (NSArray *)preferredLanguages NS_AVAILABLE(10_5, 2_0); // note that this list does not indicate what language the app is actually running in; the [NSBundle mainBundle] object determines that at launch and knows that information
People interested in app la...
JavaScript: filter() for Objects
...ng prototypes. Second, developer.mozilla.org/en/JavaScript/Reference/Global_Objects/… -- "Creates a new array with all elements that pass the test implemented by the provided function." Implementing the exact opposite on a global seems pretty silly, doesn't it?
– pyrotechnick...