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NSNotificationCenter addObserver in Swift
...truct Notfication.Name rather than by String. See the Migrating to Swift 3 guide.
Previous usage:
// Define identifier
let notificationIdentifier: String = "NotificationIdentifier"
// Register to receive notification
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(YourC...
Cluster analysis in R: determine the optimal number of clusters
...ong to find this. Thanks @Ben for answering in such detail. Can you please guide me as to where can I find the logic behind each one of these methods, like what metric or criterion they are using to determine the optimal number of clusters, or how is each one of them different from each other. My bo...
How can I break up this long line in Python?
...hing of the past. The Python standard library still uses PEP8 as its style guide, so the rule still exists, and plenty of people (myself included) follow it. It's a convenient place to draw the line.
– Devin Jeanpierre
Jan 13 '10 at 18:42
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When are you truly forced to use UUID as part of the design?
...iqueness becomes quite large. Infinite uniqueness has infinite cost.
UUID/GUID is, relatively speaking, a computationally quick and easy way to generate an ID which can be reasonably assumed to be universally unique. This is very important in many systems which need to integrate data from previousl...
Difference between Bridge pattern and Adapter pattern
... sense for your project! Perhaps consider offering a clarification edit to guide the discussion on where you believe you need to use one or the other.
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The project file has been moved renamed or is not on your computer
... into this issue using VS 2013 after renaming a project. Stanley's answer guided me to the solution:
Close VS - delete .suo file - start VS again.
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What is the best way to dump entire objects to a log in C#?
...
and output:
{
Int: 1,
String: One,
DateTime: 2010-04-11,
Guid: c050437f6fcd46be9b2d0806a0860b3e,
EmptyIntList: [],
IntList:
[
1,
2,
3
],
StringList:
[
one,
two,
three
],
StringIntMap:
{
a: 1...
How do you create a random string that's suitable for a session ID in PostgreSQL?
... (Some systems refer to this data type as a globally unique identifier, or GUID, instead.) This identifier is a 128-bit quantity that is generated by an algorithm chosen to make it very unlikely that the same identifier will be generated by anyone else in the known universe using the same algorithm....
Get to UIViewController from UIView?
...nate. I think a lot of developers take these pragmatic projects as Apple's guide to best design practice, which I am quite certain they are not.
– Benjohn
Jun 3 '14 at 10:27
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C++ display stack trace on exception
...trace() prints source file and line numbers as given in the GettingStarted guide ?
– Gimhani
Jan 29 '19 at 5:55
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