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Retrieve list of tasks in a queue in Celery
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Has anybody experienced that i.reserved() won't have an accurate list of active tasks? I have tasks running that don't show up in the list. I'm on django-celery==3.1.10
– Seperman
Jun 13 '14 at 23:48...
Is there a difference between copy initialization and direct initialization?
...C++<=14) to just specifying the initialization of whatever object this expression is initialized to (loosely speaking) in C++17. These objects (called "result objects") are the variables created by a declaration (like a1), artificial objects created when the initialization ends up being discarded...
Does Go have “if x in” construct similar to Python?
Without iterating over the entire array, how can I check if x in array using Go? Does the language have a construct?
7 A...
How to make URL/Phone-clickable UILabel?
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You can use a UITextView and select Detection for Links, Phone Numbers and other things in the inspector.
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Breaking out of a nested loop
... also place the loops into a method (or an anon-method) and use return to exit back to the main code.
// goto
for (int i = 0; i < 100; i++)
{
for (int j = 0; j < 100; j++)
{
goto Foo; // yeuck!
}
}
Foo:
Console.WriteLine("Hi");
vs:
//...
Version number comparison in Python
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def mycmp(version1, version2):
def normalize(v):
return [int(x) for x in re.sub(r'(\.0+)*$','', v).split(".")]
return cmp(normalize(version1), normalize(version2))
This is the same approach as Pär Wieslander, but a bit more compact:
Here are some tests, thanks to "How to compar...
how to exclude null values in array_agg like in string_agg using postgres?
...s a null value, that null is also taken as a name in the aggregate. For example :
8 Answers
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For i = 0, why is (i += i++) equal to 0?
...ersimplification):
int i = 0;
i = i + i; // i=0 because the ++ is a postfix operator and hasn't been executed
i + 1; // Note that you are discarding the calculation result
What actually happens is more involved than that - take a look at MSDN, 7.5.9 Postfix increment and decrement operators:
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How can I truncate a double to only two decimal places in Java?
For example I have the variable 3.545555555, which I would want to truncate to just 3.54.
15 Answers
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How to explicitly discard an out argument?
...hem.
public void PrintCoordinates(Point p)
{
p.GetCoordinates(out int x, out int y);
WriteLine($"({x}, {y})");
}
public void PrintXCoordinate(Point p)
{
p.GetCoordinates(out int x, out _); // I only care about x
WriteLine($"{x}");
}
Source: https://blogs.msdn.microsoft.com/dotnet...