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How do I design a class in Python?
...l methods.
Go through the adjectives, looking for potential attributes
Allocate methods and attributes to your classes
To refine the class, the book also advises we can do the following:
Write down (or dream up) a set of use cases—scenarios of how your program may be used. Try to c...
Reading ePub format
...e project fbreader,
it also support iphone
http://www.fbreader.org/about.php
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How to hide elements without having them take space on the page?
...ility: hidden
visibility:hidden means the tag is not visible, but space is allocated for it on the page.
display:none means completely hides elements with its space. (although you can still interact with it through the DOM)
...
Image fingerprint to compare similarity of many images
...should definitely take a look at phash.
For image comparison there is this php project :
https://github.com/kennethrapp/phasher
And my little javascript clone:
https://redaktor.me/phasher/demo_js/index.html
Unfortunately this is "bitcount"-based but will recognize rotated images.
Another approach in...
What does it mean when an HTTP request returns status code 0?
...requests using jQuery
var xhr = $.ajax({
type: "POST",
url: "some.php",
data: "name=John&location=Boston",
success: function(msg){
alert( "Data Saved: " + msg );
}
});
//kill the request
xhr.abort()
It's worth noting that running the .abort() method on an XHR objec...
How to find out which processes are using swap space in Linux?
... they don't seem to do anything on my machine): htop.sourceforge.net/index.php?page=faq
– yukondude
Nov 11 '09 at 19:25
6
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Bordered UITextView
...roundColor = [UIColor clearColor];
UIImageView *borderView = [[UIImageView alloc] initWithFrame: CGRectMake(0, 0, textView.frame.size.width, textView.frame.size.height)];
borderView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
UIImage *textFieldImage = [[UII...
Produce a random number in a range using C#
... Darrelk answer.
It is implemented using C# extension methods.
It does not allocate memory (new Random()) every time this method is called.
public static class RandomExtensionMethods
{
public static double NextDoubleRange(this System.Random random, double minNumber, double maxNumber)
{
...
What is the !! (not not) operator in JavaScript?
...bject is truthy
!![] === true // an (empty) array is truthy; PHP programmers beware!
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Use of Finalize/Dispose method in C#
... that the resources have been disposed of and its ok to release the memory allocated for them.
}
}
finally
{
// explicitly call the base class Dispose implementation
base.Dispose( isDisposing );
this.IsDisposed = true;
}
}
//TODO Uncomment this cod...