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How do I convert a string to a double in Python?
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incidentally, this also works with exponent notation. eg: float('7.5606e-08') produces the expected python float.
– drevicko
Feb 13 '14 at 7:33
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How would one call std::forward on all arguments in a variadic function?
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You would do:
template <typename ...Params>
void f(Params&&... params)
{
y(std::forward<Params>(params)...);
}
The ... pretty much says "take what's on the left, and for each template parameter, unpack it accordingly."
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The type must be a reference type in order to use it as parameter 'T' in the generic type or method
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Helped as well:) Thanks :) As a side note, I think we shouldn't copy the same constrait again and again if it's already applied in interface, IMO.
– Celdor
Nov 23 '14 at 20:09
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Mongo: find items that don't have a certain field
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I was after this for Mongoid to use in a scope. Looks like this > scope :without_recommendation, :where => {:recommendation => {"$exists"=>false}}
– genkilabs
Jun 15 '12 at 1:15
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PHP namespaces and “use”
...o if i create another file called bootstrap.php and place an autoloader inside along with $circle = new Circle(); It includes the Circle.php but I am getting an error: Fatal error: Class 'Shape' not found in .../Circle.php on line 6. It appears to load Circle.php but not load Shape.php Circle is def...
What's the difference between lapply and do.call?
... here is lapply:
lapply(iris, class)
$Sepal.Length
[1] "numeric"
$Sepal.Width
[1] "numeric"
$Petal.Length
[1] "numeric"
$Petal.Width
[1] "numeric"
$Species
[1] "factor"
And the same using Map:
Map(class, iris)
$Sepal.Length
[1] "numeric"
$Sepal.Width
[1] "numeric"
$Petal.Length
[1] "numeri...
How do I create a multiline Python string with inline variables?
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@SimeonVisser, "string".format(...) is not valid on legacy python versions (e.g. 2.4)
– Oz123
Nov 16 '12 at 10:12
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How can I run code on a background thread on Android?
...pattern which uses AsyncTask:
AsyncTask.execute(new Runnable() {
@Override
public void run() {
//TODO your background code
}
});
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What is the meaning of git reset --hard origin/master?
I did a git pull and got an error:
2 Answers
2
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Syntax Error: Not a Chance
I tried executed the following code in the python IDLE
2 Answers
2
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