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How to decide font color in white or black depending on background color?
...ce with W3C guidelines in some circumstances. Herewith I derive a modified form that always chooses the highest contrast based on the guidelines. If you don't need to conform to W3C rules then I'd stick with the simpler formula above.
The formula given for contrast in the W3C Recommendations is (L1...
Using an HTML button to call a JavaScript function
...:
if(navigator.appName == 'Netscape')
{
vesdiameter = document.forms['Volume'].elements['VesDiameter'].value;
// more stuff snipped
}
else
{
vesdiameter = eval(document.all.Volume.VesDiameter.value);
// more stuff snipped
}
I'm on Chrome, so navigator...
How do I pass a unique_ptr argument to a constructor or a function?
...lways passes unique_ptr values by rvalue reference (for instance when transforming them into shared_ptr). The rationale for that might be that it is slightly more efficient (no moving to temporary pointers is done) while it gives the exact same rights to the caller (may pass rvalues, or lvalues wrap...
JSON datetime between Python and JavaScript
I want to send a datetime.datetime object in serialized form from Python using JSON and de-serialize in JavaScript using JSON. What is the best way to do this?
...
Strange \n in base64 encoded string in Ruby
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$window.unbind('scroll', onScroll);
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Convert SVG image to PNG with PHP
...g
);
}
$im->readImageBlob($svg);
/*png settings*/
$im->setImageFormat("png24");
$im->resizeImage(720, 445, imagick::FILTER_LANCZOS, 1); /*Optional, if you need to resize*/
/*jpeg*/
$im->setImageFormat("jpeg");
$im->adaptiveResizeImage(720, 445); /*Optional, if you need to resi...
Is there XNOR (Logical biconditional) operator in C#?
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$window.unbind('scroll', onScroll);
}
};
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Https Connection Android
...ements javax.net.ssl.X509TrustManager, yet none of the methods actually perform any work, get a sample here.
Good Luck!
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Test if a class has an attribute?
...
@Marc- I agree about that the difference in performance would probably not be noticeable in a unit test. I'd get the attribute if I needed to use it, which as you say is the scenario in most cases. I recently used IsDefined in a framework I was writing to exclude a column...
iOS 7: UITableView shows under status bar
...ibrary.
I disagree with everyone who is trying to solve this by using any form of "Magic Numbers" e.g. "use a delta of 20px". This kind of tightly coupled programming is definitely not what Apple wants us to do here.
I have discovered two solutions to this problem:
Preserving the UITableViewCont...