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How does the HyperLogLog algorithm work?
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The problem is that the assumption of having evenly distributed numbers from 0 t 2^k-1 is too hard to achieve (the data we encountered is mostly not numbers, almost never evenly distributed, and can be between any values. But using a good hashing function you can assume that the output bits would...
Where to use EJB 3.1 and CDI?
...bean. The @Stateless is basically an instance pool -- you get an instance from the pool for the duration of one invocation. The @Singleton is essentially @ApplicationScoped
So in a fundamental level, anything you can do with an "EJB" bean you should be able to do with a "CDI" bean. Under the cov...
How do I convert a Django QuerySet into list of dicts?
... should look like, but most likely you are referring to QuerySet.values(). From the official django documentation:
Returns a ValuesQuerySet — a QuerySet subclass that returns
dictionaries when used as an iterable, rather than model-instance
objects.
Each of those dictionaries represen...
Parsing HTML into NSAttributedText - how to set font?
... on the answer given by Javier Querol
extension UILabel {
func setHTMLFromString(text: String) {
let modifiedFont = NSString(format:"<span style=\"font-family: \(self.font!.fontName); font-size: \(self.font!.pointSize)\">%@</span>", text) as String
let attrStr = try...
Using helpers in model: how do I include helper dependencies?
I'm writing a model that handles user input from a text area. Following the advice from http://blog.caboo.se/articles/2008/8/25/sanitize-your-users-html-input , I'm cleaning up the input in the model before saving to database, using the before_validate callback.
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How do I remove newlines from a text file?
I have the following data, and I need to put it all into one line.
19 Answers
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Cannot run Eclipse; JVM terminated. Exit code=13
...background I detected following: the chrome java updater (notabene started from an Oracle site) added C:\ProgramData\Oracle\Java\javapath in front of the env var PATH. It contains three symbolic links to the newest java 8 JRE installation in (x86) program folder -> hence to a 32 bit java JRE. Ora...
Callback when CSS3 transition finishes
...(transitioning its opacity to 0) and then when finished remove the element from the DOM.
5 Answers
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How to sort an array of integers correctly
Trying to get the highest and lowest value from an array that I know will contain only integers seems to be harder than I thought.
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Optional query string parameters in ASP.NET Web API
...run-time could have taken the type's default value if it didn't receive it from the URI. What is the technical reason behind this?. I'm sure this has something to do with model binder.
– RBT
Feb 2 '17 at 10:52
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