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Explain the use of a bit vector for determining if all characters are unique
... the right like in decimal numbers only in binaries. We are multiplying by base 2-when we move up however many places not base 10- so the number on the right is the exponent and the number on the left is a base multiple of 2.
This operator |= take the operand on the left and or's it with the oper...
Laravel orderBy on a relationship
...oller example; when getting the list of comments, just apply the orderBy() based on Input::get().
(be sure to do some input-checking ;) )
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In a storyboard, how do I make a custom cell for use with multiple controllers?
... bundle: nil), forCellReuseIdentifier: reuseIdentifier)
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier:reuseIdentifier, for: indexPath) as! CustomCell
return cell!
}
...
Why are side-effects modeled as monads in Haskell?
...mbedded in it, a monad instance means you can build and flatten new layers based on those values. So whatever meaning you assign to a single layer of the functor, a monad means you can create an unbounded number of layers with a strict notion of causality going from one to the next. Specific instanc...
What is the difference between Swing and AWT?
...
The base difference that which already everyone mentioned is that one is heavy weight and other is light weight. Let me explain, basically what the term heavy weight means is that when you're using the awt components the native c...
UnicodeDecodeError when redirecting to file
...m). The correct, modern view properly separates these two string concepts, based on the following two points:
Characters are mostly unrelated to computers: one can draw them on a chalk board, etc., like for instance بايثون, 中蟒 and ????. "Characters" for machines also include "drawing ins...
ASP.NET MVC Custom Error Handling Application_Error Global.asax?
...page again and again... (for instance, you want to log your error in a database and it is down).
– andrecarlucci
Aug 19 '09 at 13:24
125
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Event Signature in .NET — Using a Strong Typed 'Sender'? [closed]
...t is not restricted to inherit from the 'EventArgs' class. The 'EventArgs' base class is bascially empty; maybe they are moving away from this restriction?
– Mike Rosenblum
Mar 19 '12 at 4:44
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Best exception for an invalid generic type argument
... MSDN class remarks:
There are methods that are not
supported in the base class, with the
expectation that these methods will be
implemented in the derived classes
instead. The derived class might
implement only a subset of the methods
from the base class, and throw
NotSupportedExc...
When should we use mutex and when should we use semaphore
...used for one thread to signal another thread to run.
/* Task 1 */
pthread_mutex_lock(mutex_thing);
// Safely use shared resource
pthread_mutex_unlock(mutex_thing);
/* Task 2 */
pthread_mutex_lock(mutex_thing);
// Safely use shared resource
pthread_mutex_unlock(mutex_thing); // unlock mut...