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JavaScript Nested function
...
It is called closure.
Basically, the function defined within other function is accessible only within this function. But may be passed as a result and then this result may be called.
It is a very powerful feature. You can see mor...
TypeScript “this” scoping issue when called in jquery callback
...tance of your class. If this method is usually only used in regular method calls, this is overkill. However, if it's used a lot in callback positions, it's more efficient for the class instance to capture the this context instead of each call site creating a new closure upon invoke.
Good: Impossible...
ViewPager with previous and next page boundaries
...tainer (com.example.pagercontainer.PagerContainer) wraps the ViewPager and calls setClipChildren(false); on itself, so even though the ViewPager is focused on one selected page, other pages that have coordinates beyond the ViewPager bounds are still visible, so long as they fit within the PagerConta...
What is the difference between onBlur and onChange attribute in HTML?
When is one called versus the other? Is there a situation were onChange would be called but onBlur would not be called?
7 A...
How do you receive a url parameter with a spring controller mapping
This issue seems trivial, but I can't get it to work properly. I'm calling my Spring controller mapping with jquery ajax. The value for someAttr is always empty string regardless of the value in the url. Please help me determine why.
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What's the recommended way to extend AngularJS controllers?
...ll be injected normally.
@mwarren, your concern is taken care of auto-magically by Angular dependency injection. All you need is to inject $scope, although you could override the other injected values if desired.
Take the following example:
(function(angular) {
var module = angular.module(...
How do I get a background location update every n minutes in my iOS application?
...battery life
instance.locationManager.pausesLocationUpdatesAutomatically = NO; // this is important
});
return sharedInstance;
}
- (void)startUpdatingLocation
{
CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
if (status == kCLAuthorizationStatusDeni...
Best way to generate random file names in Python
...n.org/library/tempfile.html. For instance:
In [4]: import tempfile
Each call to tempfile.NamedTemporaryFile() results in a different temp file, and its name can be accessed with the .name attribute, e.g.:
In [5]: tf = tempfile.NamedTemporaryFile()
In [6]: tf.name
Out[6]: 'c:\\blabla\\locals~1\\t...
Efficient method to generate UUID String in JAVA (UUID.randomUUID().toString() without the dashes)
...at's wrong with UUID.randomUUID().toString() ? Also note that you (theoretically) decrease the entropy by holding a static final SecureRandom (make it volatile). also why synchronize the generateUniqueId? This means all your threads are blocked on this method.
– Maxim Veksler
...
iPad keyboard will not dismiss if modal ViewController presentation style is UIModalPresentationForm
...IViewController derived class, disablesAutomaticKeyboardDismissal is never called
– Jorge Arimany
Oct 16 '15 at 17:54
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