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What is “lifting” in Scala?
...es True indeed. To my defence: oxbow_lakes' answer wasn't there yet when I started to write mine.
– Malte Schwerhoff
Jul 31 '13 at 12:06
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Xcode doesn't show the line that causes a crash
... main + 111
21 libdyld.dylib 0x000000011174968d start + 1
22 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
If you read carefully the First Throw call stack
0 CoreFoundatio...
How many Activities vs Fragments?
...item, either by
* displaying a fragment in-place in the current UI, or starting a
* whole new activity in which it is displayed.
*/
void showDetails(int index)
{
mCurCheckPosition = index;
if (mDualPane)
{
// We can display everything in-place...
Targeting position:sticky elements that are currently in a 'stuck' state
...ctor('.sticky');
const rootBoundsInfo = record.rootBounds;
// Started sticking.
if (targetInfo.bottom < rootBoundsInfo.top) {
fireEvent(true, stickyTarget);
}
// Stopped sticking.
if (targetInfo.bottom >= rootBoundsInfo.top &&
tar...
What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos
...
The quick and dirty first pass solution is always a great one to start with, as a comparison if nothing else.
Greedy placement from large to small.
Put the largest rectangle remaining into your packed area. If it can't fit anywhere, place it in a place that extends the pack region as lit...
RSS Feeds in ASP.NET MVC
...
Hanselman has a similar solution (video: starting around 41m) where he inherits from FileResult. By doing so, you can have your class's constructor call base("application/rss+xml") and avoid steps 3 and 4. He does override ExecuteResult, but it isn't vital. He also...
How do I use $scope.$watch and $scope.$apply in AngularJS?
...o wait on jQuery.
To tackle this, $apply has been introduced. It lets you start the digestion cycle explicitly. However, you should only use this to migrate some data to AngularJS (integration with other frameworks), but never use this method combined with regular AngularJS code, as AngularJS will ...
What is the best way to prevent session hijacking?
...VER['HTTP_X_FORWARDED_FOR'];
$agent = $_SERVER['HTTP_USER_AGENT'];
session_start();
// Do this each time the user successfully logs in.
$_SESSION['ident'] = hash("sha256", $aip . $bip . $agent);
// Do this every time the client makes a request to the server, after authenticating
$ident = hash("sha...
Understanding Python super() with __init__() methods [duplicate]
... the Method Resolution Order.
check_next = mro.index(ChildB) + 1 # Start looking after *this* class.
while check_next < len(mro):
next_class = mro[check_next]
if '__init__' in next_class.__dict__:
next_class.__init__(self)
br...
What is a callback function?
... a certain point in the future.
Typically it is used when a task is being started that will finish asynchronously (ie will finish some time after the calling function has returned).
For example, a function to request a webpage might require its caller to provide a callback function that will be ca...