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When should I release objects in -(void)viewDidUnload rather than in -dealloc?
...uld have been set through IBOutlets when loading from a nib, or programmatically inside -loadView, for instance.
The additional ownership of subviews by the UIViewController means that even when its view is removed from the view hierarchy and released to save memory, through which the subviews are ...
Create empty queryset by default in django form fields
...ike so: edit_form.fields["asset"].queryset = Asset.objects.filter(location_id=location_id)
– radtek
May 13 '14 at 16:49
...
Benchmarking small code samples in C#, can this implementation be improved?
...eat change (I wish I could +1 it). @Mike im not sure, i suspect the virtualcall overhead will be much higher that the comparison and assignment, so the performance diff will be negligible
– Sam Saffron
Jun 27 '09 at 0:05
...
What is the direction of stack growth in most modern systems?
...puny little wristwatch.
If the CPU provides any kind of choice, the ABI / calling convention used by the OS specifies which choice you need to make if you want your code to call everyone else's code.
The processors and their direction are:
x86: down.
SPARC: selectable. The standard ABI uses dow...
html5 localStorage error with Safari: “QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to
...owsing mode, it appears as though localStorage is available, but trying to call setItem throws an exception.
store.js line 73
"QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to add something to storage that exceeded the quota."
What happens is that the window object still exposes local...
UILongPressGestureRecognizer gets called twice when pressing down
...ture {
if(UIGestureRecognizerStateBegan == gesture.state) {
// Called on start of gesture, do work here
}
if(UIGestureRecognizerStateChanged == gesture.state) {
// Do repeated work here (repeats continuously) while finger is down
}
if(UIGestureRecognizerStateEnd...
Why doesn't C# support the return of references?
...if (x > y)
return ref x;
else
return ref y;
}
and then call it with
int a = 123;
int b = 456;
ref int c = ref Max(ref a, ref b);
c += 100;
Console.WriteLine(b); // 556!
I know empirically that it is possible to build a version of C# that supports these features because I ha...
Prevent browser caching of AJAX call result
...
Indeed it does not need to be inside the document ready call.
– Peter J
Jul 15 '11 at 21:14
19
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Maximum Year in Expiry Date of Credit Card
...
There is no official guideline as the credit card issuers can choose each when the cards they issue will expire. In fact they have been issuing cards for longer and longer periods of time. If you're trying to determine how far out into the future y...
AngularJS multiple filter with custom filter function
...
Try this:
<tr ng-repeat="player in players | filter:{id: player_id, name:player_name} | filter:ageFilter">
$scope.ageFilter = function (player) {
return (player.age > $scope.min_age && player.age < $scope.max_age);
}
...