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What exactly are late static bindings in PHP?
... which it is used. This means that if you make a method in a parent class and call it from a child class, self will not reference the child as you might expect.
Late static binding introduces a new use for the static keyword, which addresses this particular shortcoming. When you use static, it re...
Pushing an existing Git repository to SVN
I've been doing all my work in Git and pushing to GitHub. I've been very happy with both the software and the site, and I have no wish to change my working practices at this point.
...
How to add google chrome omnibox-search support for your site?
...earch in $URL". For example, there are some russian sites habrahabr.ru or yandex.ru. When you press TAB you'll be able to search in that site, not in your search engine.
How to make my site to be able for it? Maybe, I need to write some special code in my site pages?
...
Quick way to list all files in Amazon S3 bucket?
I have an amazon s3 bucket that has tens of thousands of filenames in it. What's the easiest way to get a text file that lists all the filenames in the bucket?
...
Unique fields that allow nulls in Django
...trings are equal to empty strings for uniqueness checks, under both Django and database rules.
You can force the admin interface to store NULL for an empty string by providing your own customized model form for Foo with a clean_bar method that turns the empty string into None:
class FooForm(forms....
Polymorphism vs Overriding vs Overloading
...is not definable for Humans. It is only definable for the subclasses Male and Female. Also, Human is an abstract concept — You cannot create a human that is neither Male nor Female. It’s got to be one or the other.
So we defer the implementation by using the abstract class.
public class Mal...
Can one do a for each loop in java in reverse order?
...> original) {
return new Reversed<T>(original);
}
}
And you would use it like:
import static Reversed.reversed;
...
List<String> someStrings = getSomeStrings();
for (String s : reversed(someStrings)) {
doSomethingWith(s);
}
...
CSS3 selector :first-of-type with class name?
...s to select an element if it has the given class (or is of the given type) and is the first of its type among its siblings.
Unfortunately, CSS doesn't provide a :first-of-class selector that only chooses the first occurrence of a class. As a workaround, you can use something like this:
.myclass1 {...
Group by in LINQ
... new { PersonId = key.Id, PersonName = key.Name, PersonCount = g.Count()}) and you will get all the people that occur with an Id, Name, and a number of occurrences for each person.
– Chris
Aug 6 '15 at 21:40
...
How to convert an Array to a Set in Java
...s?
For JDK < 8, I would just write the obvious for loop to do the wrap and add-to-set in one pass.
For JDK >= 8, an attractive option is something like:
Arrays.stream(intArray).boxed().collect(Collectors.toSet());
...