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What are the differences between NP, NP-Complete and NP-Hard?
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I assume that you are looking for intuitive definitions, since the technical definitions require quite some time to understand. First of all, let's remember a preliminary needed concept to understand those definitions.
Decision problem: A problem with a yes or ...
WebSockets protocol vs HTTP
...y blogs and discussions about websocket and HTTP, and many developers and sites strongly advocate websockets, but i still can not understand why.
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How do I represent a time only value in .NET?
Is there a way one can represent a time only value in .NET without the date? For example, indicating the opening time of a shop?
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Delete specified file from document directory
I want to delete an image from my app document directory. Code I have written to delete image is:
10 Answers
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What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an
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Further reading for any of the topics here: The Definitive Guide to Linux System Calls
I verified these using GNU Assembler (gas) on Linux.
Kernel Interface
x86-32 aka i386 Linux System Call convention:
In x86-32 parameters for Linux system call are passed using regist...
jQuery UI Dialog - missing close icon
...cause you are calling bootstrap in, after you are calling jquery-ui in.
Literally, swap the two so that instead of:
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<script src="js/bootstrap.min.js"></script>
it becomes
<script src="js/bootstrap....
Unable to launch the IIS Express Web server, Failed to register URL, Access is denied
...matic ones.
I'm using Visual Studio 2013 on Windows 7. I think I'm running it as administrator, the window title says PROJECT NAME - Microsoft Visual Studio (Administrator) .
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Get the length of a String
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As of Swift 4+
It's just:
test1.count
for reasons.
(Thanks to Martin R)
As of Swift 2:
With Swift 2, Apple has changed global functions to protocol extensions, extensions that match any type conforming to a protocol. Thus the new synt...
How to remove leading zeros using C#
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It really depends on how long the NVARCHAR is, as a few of the above (especially the ones that convert through IntXX) methods will not work for:
String s = "0057803275843290675067806570657863780617546545321649532649524692154...
SecurityError: Blocked a frame with origin from accessing a cross-origin frame
...ing an <iframe> in my HTML page and trying to access the elements within it using Javascript, but when I try to execute my code, I get the following error:
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