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Scalar vs. primitive data type - are they the same thing?
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I don't think they're interchangeable. They are frequently similar, but the difference does exist, and seems to mainly be in what they are contrasted with and what is relevant in context.
Scalars are typically contrasted with compounds, such as ...
How exactly does the python any() function work?
... would get this comprehended list: [False, False, True, False, True]. This internal value would then get passed to the any function, which would return True, since there is at least one True value.
But with generator expressions, Python no longer has to create that internal list of True(s) and Fals...
Importing a Swift protocol in Objective-C class
I try to import a Swift Protocol named AnalyticProtocol into an Objective-C class named AnalyticFactory .
5 Answers
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When should I use perror(“…”) and fprintf(stderr, “…”)?
...difference between - or better, when I should use - perror("...") or fprintf(stderr, "...") .
5 Answers
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Declaring an enum within a class
...nition then you'll need to explicitly specify Car::Color in the function's interface.
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How to sort with lambda in Python
..., ('apple','10','200'), ('baby','20','300')]
lst.sort(key=lambda x:x[1])
print(lst)
It will print as following:
[('apple', '10', '200'), ('baby', '20', '300'), ('candy', '30', '100')]
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Calculate difference in keys contained in two Python dictionaries
...lf.set_past = set(current_dict.keys()), set(past_dict.keys())
self.intersect = self.set_current.intersection(self.set_past)
def added(self):
return self.set_current - self.intersect
def removed(self):
return self.set_past - self.intersect
def changed(self):
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Python function global variables?
...declared locally even if they have the same value. This applies to tuples, ints... If it's an instance of a list for example and you do x.append("..."), it's the global variable x that is changed, because the local one references the global one.
– jadkik94
May ...
How to: Define theme (style) item for custom widget
...public CustomImageButton( Context context, AttributeSet attrs,
int defStyle ) {
super( context, attrs, defStyle );
final TypedArray array = context.obtainStyledAttributes( attrs,
R.styleable.CustomImageButton, defStyle,
R.style.Widget_ImageButton_...
What to do on TransactionTooLargeException
...ransaction buffer.
This also can occur, when you pass lot of data through intent extras
When you get this exception in your application, please analyze your code.
Are you exchanging lot of data between your services and application?
Using intents to share huge data, (for example, the user sele...