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When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s
...about them lately, but I'm still unsure why I would want to implement one, and under what circumstances I would want to use one.
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Which Architecture patterns are used on Android? [closed]
I'm doing a small research of mobile platforms and I would like to know which design patterns are used in Android?
12 Answe...
Get the current displaying UIViewController on the screen in AppDelegate.m
...ew does not belong to the root view controller (in the case of modal views and such).
– Dima
Jul 24 '12 at 19:17
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Is it possible for a computer to “learn” a regular expression by user-provided examples?
...ton, it is possible to learn some regular expressions by a program. Kearns and Valiant show some cases where it is not possible to learn a finite automaton. A related problem is learning hidden Markov Models, which are probabilistic automata that can describe a character sequence. Note that most mod...
Uniq by object attribute in Ruby
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This is the correct answer for ruby 1.9 and later versions.
– nurettin
Dec 15 '12 at 7:06
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C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
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#include <stdio.h>
struct str{
int len;
char s[0];
};
struct foo {
struct str *a;
};
int main(int argc, char** argv) {
struct foo f={0}...
Why use a public method in an internal class?
...tion even within the compiler team itself.
First off, it's wise to understand the rules. A public member of a class or struct is a member that is accessible to anything that can access the containing type. So a public member of an internal class is effectively internal.
So now, given an internal c...
NSNotificationCenter addObserver in Swift
...tification.Name("NotificationIdentifier"), object: nil)
Function-Method handler for received Notification:
@objc func methodOfReceivedNotification(notification: Notification) {}
Swift 3.0 & Xcode 8.0+:
Send(Post) Notification:
NotificationCenter.default.post(name: Notification.Name("Notif...
Does Swift have documentation generation support?
...ocumentation in Quick Help (both in the popover when ⌥-clicking symbols, and in the Quick Help Inspector ⌥⌘2).
Symbol documentation comments are now based on the same Markdown syntax used by rich playground comments, so a lot of what you can do in playgrounds can now be used directly in sourc...
getting exception “IllegalStateException: Can not perform this action after onSaveInstanceState”
I have a Live Android application, and from market i have received following stack trace and i have no idea why its happening as its not happening in application code but its getting caused by some or the other event from the application (assumption)
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