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ARC and bridged cast
...Release Notes, under the section "The Compiler Handles CF Objects Returned From Cocoa Methods", it is indicated that using a method like -CGColor which returns a Core Foundation object will automatically be handled properly by the compiler.
Thus, they suggest using code like the following:
CAGrad...
How to Define Callbacks in Android?
...ires me to edit the source path on it. So how would i carry out "callBack" from an old activity to a new activity?
– Antoine Murion
Apr 20 '15 at 8:41
3
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How do I verify a method was called exactly once with Moq?
...aximum.
Between - Specifies that a mocked method should be invoked between from and to times.
Exactly - Specifies that a mocked method should be invoked exactly times times.
Never - Specifies that a mocked method should not be invoked.
Once - Specifies that a mocked method should be invoked exactly ...
Python Linked List
...ail. This is very useful for dynamic algorithms that require saved values from previous iterations where sharing list tails can reduce memory complexity from quadratic to linear and eliminate time overhead due to copying.
– saolof
Jun 25 '17 at 12:08
...
Why does AuthorizeAttribute redirect to the login page for authentication and authorization failures
...tion used status code 401 for both "unauthorized" and "unauthenticated".
From the original specification:
If the request already included Authorization credentials, then the 401 response indicates that authorization has been refused for those credentials.
In fact, you can see the confusion r...
How to check if a String contains only ASCII?
...
From Guava 19.0 onward, you may use:
boolean isAscii = CharMatcher.ascii().matchesAllOf(someString);
This uses the matchesAllOf(someString) method which relies on the factory method ascii() rather than the now deprecated A...
Any difference between First Class Function and High Order Function
...d where parameters that are functions are treated specially, and different from "ordinary" value parameters).
So the presence of first-class functions (as a language feature) implies the presence of higher-order functions, but not the other way round.
...
How do you create an asynchronous method in C#?
...10)
{
for (int i = 0; i < num; i++)
{
await Task.Delay(TimeSpan.FromSeconds(1));
}
return DateTime.Now;
}
If your async method is doing CPU work, you should use Task.Run:
private static async Task<DateTime> CountToAsync(int num = 10)
{
await Task.Run(() => ...);
retur...
How to get body of a POST in php?
... so you can alternatively do:
$entityBody = stream_get_contents(STDIN);
From the PHP manual entry on I/O streamsdocs:
php://input is a read-only stream that allows you to read raw data
from the request body. In the case of POST requests, it is preferable
to use php://input instead of $HTT...
Outline radius?
...-shadow version. For example, if you want the "outline" to be spaced away from the element (i.e. simulating outline-offset) it becomes possible with this technique.
– Kirk Woll
Jan 4 '19 at 22:30
...