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How to create module-wide variables in Python? [duplicate]
..._DBNAME__ = name
else:
raise RuntimeError("Database name has already been set.")
By the way, for this example, the simple if not __DBNAME__ test is adequate, because any string value other than an empty string will evaluate true, so any actual database name will evaluate true. But for...
Android: Difference between Parcelable and Serializable?
...address;
}
public MyObjects(Parcel source) {
age = source.readInt();
name = source.readString();
address = source.createStringArrayList();
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Pa...
What is the difference between mocking and spying when using Mockito?
... was not producing real partial mocks and it was confusing for some users. Read more about spying: here or in javadoc for spy(Object) method.
callRealMethod() was introduced after spy(), but spy() was left there of course, to ensure backward compatibility.
Otherwise, you're right: all the methods o...
How to remove convexity defects in a Sudoku square?
...@1*: I think it's called "white image adjustment". Don't ask me where I've read about it, it's a standard image processing tool. The model behind the idea is simple: The amount of light reflected from a (Lambertian) surface is just the surface brightness times the amount of light a white body in the...
Understanding implicit in Scala
...k
in view folder of app the template is declared like
@()(implicit requestHreader:RequestHeader)
in controller action is like
def index = Action{
implicit request =>
Ok(views.html.formpage())
}
if you do not mention request parameter as implicit explicitly then you must have been written-
...
Where should I put tags in HTML markup?
...DOMContentLoaded", function() {
// this function runs when the DOM is ready, i.e. when the document has been parsed
document.getElementById("user-greeting").textContent = "Welcome back, Bart";
});
Because your browser does not know my-script.js isn't going to modify the document until it ...
Return type of '?:' (ternary conditional operator)
...
And when reading up on xvalue and prvalue (since I hadn't heard of them before your answer) I came across this handy SO post: stackoverflow.com/questions/3601602/…
– fluffy
Dec 16 '11 at 19:04...
Understanding Fragment's setRetainInstance(boolean)
...nts can be quite useful for propagating state information — especially thread management — across activity instances. For example, a fragment can serve as a host for an instance of Thread or AsyncTask, managing its operation. See my blog post on this topic for more information.
In general, I wo...
What are some examples of commonly used practices for naming git branches? [closed]
...ver you like to match your workflow. I like to use short nouns for mine. Read on for more clarity.
Short well-defined tokens
Choose short tokens so they do not add too much noise to every one of your branch names. I use these:
wip Works in progress; stuff I know won't be finished soon
fe...
No == operator found while comparing structs in C++
...of operator<=>....
It may seem a bit unhelpful of C++ not to have already Standardised this earlier, but often structs/classes have some data members to exclude from comparison (e.g. counters, cached results, container capacity, last operation success/error code, cursors), as well as decision...