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CALayer with transparent hole in it
...Color(red: 0, green: 0, blue: 0, alpha: 0.85)
// Create the initial layer from the view bounds.
let maskLayer = CAShapeLayer()
maskLayer.frame = overlay.bounds
maskLayer.fillColor = UIColor.blackColor().CGColor
// Create the frame for the circle.
let radius: CGFloat = 50.0
let rect = CGRectMake(
...
When & why to use delegates? [duplicate]
...he database by uploading a file with Meta data (ignore why, it's a request from the owner of the FTP site). The issue is at what point and how? We need a new method called NotifyFtpComplete() but in which of our projects should it be saved too - FTP or SaveDatabase? Logically, the code should live ...
When to use the JavaScript MIME type application/javascript instead of text/javascript?
... "by context" which is always the correct behavior for all browsers right from the very first browsers
– Pacerier
Jun 1 '13 at 16:08
...
On delete cascade with doctrine2
I'm trying to make a simple example in order to learn how to delete a row from a parent table and automatically delete the matching rows in the child table using Doctrine2.
...
PHP CURL DELETE request
... delete requests are always blank
* @return Obj $result HTTP response from REST interface in JSON decoded.
*/
public function curl_del($path, $json = '')
{
$url = $this->__url.$path;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CUSTOMREQUE...
Too many 'if' statements?
... creation.
The essence of the function that solves OP's problem is a map from 2 numbers (one,two), domain {0,1,2,3} to the range {0,1,2,3}. Each of the answers has approached how to implement that map.
Also, you can see in a number of the answers a restatement of the problem as a map of 1 2-digi...
Python - write() versus writelines() and concatenated strings
...er '\n' as glue. It is more efficient than using the + operator.
Starting from the same lines sequence, ending up with the same output, but using writelines():
lines = ['line1', 'line2']
with open('filename.txt', 'w') as f:
f.writelines("%s\n" % l for l in lines)
This makes use of a generato...
What is a None value?
..., there was already an F sticker on the None, and all you did was move it, from None to "fork". So when you type F = None, you're "reset[ting] it to its original, empty state", if we decided to treat None as meaning empty state.
I can see what he's getting at, but that's a bad way to look at it. ...
What's the difference between an exclusive lock and a shared lock?
...k that part of the file.
A shared or read lock prohibits any other process from requesting a write lock on the specified part of the file. However, other processes can request read locks.
More on that : http://www.gnu.org/software/libc/manual/html_node/File-Locks.html
...
Does Java 8 provide a good way to repeat a value or function?
... 8)
.forEach(System.out::println);
If you need a step different from 1, you can use a mapping function, for example, for a step of 2:
IntStream.rangeClosed(1, 8)
.map(i -> 2 * i - 1)
.forEach(System.out::println);
Or build a custom iteration and limit the size of t...