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Why JSF calls getters multiple times
... is caused by the nature of deferred expressions #{} (note that "legacy" standard expressions ${} behave exactly the same when Facelets is used instead of JSP). The deferred expression is not immediately evaluated, but created as a ValueExpression object and the getter method behind the expression i...
Run Java Code Online [closed]
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Ideone is the best site for the online code running, debugging and it provides extra performance stats also.
Without Sign Up, you can run code upto of maximum 5 sec, and for signup, upto a max of 15 sec. And for Signup, the code management and history is also too good.
However, it has...
Python list subtraction operation
...set(x) - set(y))
>>> z
[0, 8, 2, 4, 6]
Or you might just have x and y be sets so you don't have to do any conversions.
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Parsing HTML into NSAttributedText - how to set font?
...ttributes: nil)
self.attributedText = attrStr
}
}
Swift 3.0 and iOS 9+
extension UILabel {
func setHTMLFromString(htmlText: String) {
let modifiedFont = String(format:"<span style=\"font-family: '-apple-system', 'HelveticaNeue'; font-size: \(self.font!.pointSize)\">...
What is base 64 encoding used for?
I've heard people talking about "base 64 encoding" here and there. What is it used for?
18 Answers
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input() error - NameError: name '…' is not defined
... to input(). That is, the new input() function reads a line from sys.stdin and returns it with the trailing newline stripped. It raises EOFError if the input is terminated prematurely. To get the old behavior of input(), use eval(input())
In Python 2.7, there are two functions which can be used ...
Computational complexity of Fibonacci Sequence
I understand Big-O notation, but I don't know how to calculate it for many functions. In particular, I've been trying to figure out the computational complexity of the naive version of the Fibonacci sequence:
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Gmail's new image caching is breaking image links in newsletter
...en this email will hit the gmail server GoogleImageProxy will try to fetch and store the images from your site to its own proxy server. while fetching the images, GoogleImageProxy found some 404 statuses against your missing images and 403 against some protected images. GoogleImagesProxy has stored ...
When do you use Java's @Override annotation and why?
What are the best practices for using Java's @Override annotation and why?
27 Answers
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Aren't promises just callbacks?
I've been developing JavaScript for a few years and I don't understand the fuss about promises at all.
10 Answers
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