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Full Screen DialogFragment in Android
...
void showDialog() {
FragmentTransaction ft = getFragmentManager().beginTransaction();
DialogFragment newFragment = MyDialogFragment.newInstance();
newFragment.show(ft, "dialog");
}
public static class MyDialogFragment extends DialogFragment {
static MyDialogFragment newInstance()...
What's the @ in front of a string in C#?
... a verbatim string literal - anything in the string that would normally be interpreted as an escape sequence is ignored.
So "C:\\Users\\Rich" is the same as @"C:\Users\Rich"
There is one exception: an escape sequence is needed for the double quote. To escape a double quote, you need to put two dou...
Use cases for the 'setdefault' dict method
...f it's dynamic.
For example, I need a dictionary to map strings to unique ints. defaultdict(int) will always use 0 for the default value. Likewise, defaultdict(intGen()) always produces 1.
Instead, I used a regular dict:
nextID = intGen()
myDict = {}
for lots of complicated stuff:
#stuff that...
Releasing memory in Python
...e heap can be subject to high-water marks. This is complicated by Python's internal optimizations for allocating small objects (PyObject_Malloc) in 4 KiB pools, classed for allocation sizes at multiples of 8 bytes -- up to 256 bytes (512 bytes in 3.3). The pools themselves are in 256 KiB arenas, so ...
Javascript: negative lookbehind equivalent?
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Lookbehind Assertions got accepted into the ECMAScript specification in 2018.
Positive lookbehind usage:
console.log(
"$9.99 €8.47".match(/(?<=\$)\d+(\.\d*)?/) // Matches "9.99"
);
Negative lookbehind usage:
console.log(
"$9.99 ...
SQL Switch/Case in 'where' clause
...
declare @locationType varchar(50);
declare @locationID int;
SELECT column1, column2
FROM viewWhatever
WHERE
@locationID =
CASE @locationType
WHEN 'location' THEN account_location
WHEN 'area' THEN xxx_location_area
WHEN 'division' THEN xxx_location_division ...
How to get complete month name from DateTime
... receive "MMMM" as a response, probably you are getting the month and then converting it to a string of defined format.
DateTime.Now.Month.ToString("MMMM")
will output "MMMM"
DateTime.Now.ToString("MMMM")
will output the month name
...
Why is there “data” and “newtype” in Haskell? [duplicate]
...
Both newtype and the single-constructor data introduce a single value constructor, but the value constructor introduced by newtype is strict and the value constructor introduced by data is lazy. So if you have
data D = D Int
newtype N = N Int
Then N undefined is equ...
Why are Subjects not recommended in .NET Reactive Extensions?
... used standard INPC properties and then using a simple Extension method to convert this to IObservable. Additionally, you will need custom WPF bindings to work with your behaviour subjects. Now your poor team has to learn WPF, MVVM, Rx and your new framework too.
– Lee Campbell...
Why do loggers recommend using a logger per class?
...to clarify things. We were just manually putting the class name and method into the message (i.e. "ImageCreator.CreateThumbnail() called"), but it's better if the logger can handle it.
– Daniel T.
Jun 30 '10 at 19:40
...