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nonlocal keyword in Python 2.x
...x. How should one access nonlocal variables in closures in these versions of python?
10 Answers
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php is null or empty?
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What you're looking for is:
if($variable === NULL) {...}
Note the ===.
When use ==, as you did, PHP treats NULL, false, 0, the empty string, and empty arrays as equal.
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SQL NVARCHAR and VARCHAR Limits
...SQL is growing over 4000 chars. Now, I understand that there is a 4000 max set for NVARCHAR(MAX) , but looking at the executed SQL in Server Profiler for the statement
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How to define a function in ghci across multiple lines?
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GHCi now has a multiline-input mode, enabled with :set +m. For example,
Prelude> :set +m
Prelude> let fac 0 = 1
Prelude| fac n = n * fac (n-1)
Prelude|
Prelude> fac 10
3628800
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Set every cell in matrix to 0 if that row or column contains a 0
Given a NxN matrix with 0s and 1s. Set every row that contains a 0 to all 0 s and set every column that contains a 0 to all 0 s.
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What characters are allowed in DOM IDs? [duplicate]
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Significantly, this means XML names are a superset of HTML names. i.e. Any valid HTML name is also a valid XML/XHTML name.
– Ben Blank
Jul 2 '09 at 23:14
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Remove 'a' from legend when using aesthetics and geom_text
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Set show.legend = FALSE in geom_text:
ggplot(data = iris,
aes(x = Sepal.Length, y = Sepal.Width, colour = Species, shape = Species, label = Species)) +
geom_point() +
geom_text(show.legend = FALSE)
The argu...
How to convert NSNumber to NSString
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//An example of implementation :
// we set the score of one player to a value
[Game getCurrent].scorePlayer1 = [NSNumber numberWithInteger:1];
// We copy the value in a NSNumber
NSNumber *aNumber = [Game getCurrent].scorePlayer1;
// Conversion of the NSNumber aNum...
py2exe - generate single executable file
... never figured it out. Has anyone successfully done this? Can I see your setup.py file, and what command line options you used?
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Is it possible to assign numeric value to an enum in Java?
...without the need for an accessor method. Since it's final, it can only be set in the constructor. IMO it leads to slightly cleaner code, but it's mostly a matter of preference, I suppose. Using a final variable saves you one method definition.
– Steve Ferguson
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