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Pandas groupby: How to get a union of strings
...d by @voithos below is much faster than the .apply recommended here. In my testing I was getting 5-10x faster.
– Doubledown
Sep 12 '19 at 0:02
add a comment
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How do I use jQuery's form.serialize but exclude empty fields
...s returning true, !! retypes anything to bool, you can try in console. !!('test'), !!(5), !!(0)
– Aiphee
Mar 9 '16 at 9:31
2
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Why should I use a pointer rather than the object itself?
...);
vector.push_back(&triangle);
for (auto& e : vector)
{
auto test = dynamic_cast<Triangle*>(e); // I only care about triangles
if (!test) // not a triangle
e.GenericFunction();
else
e.TriangleOnlyMagic();
}
So say if only Triangles had a Rotate functio...
How can I force gradle to redownload dependencies?
...
I can't speak for the OP, but my specific use case is to test whether my configuration of a non-MavenCentral repository actually works.
– Emil Lundberg
Jun 24 '13 at 8:15
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Jelly Bean DatePickerDialog — is there a way to cancel?
...rovided).
At first I was afraid of not calling the clearFocus(), but I've tested here and the Log lines were clean. So that line I proposed may not even be necessary after all, but I don't know.
Compatibility with previous API levels (edited)
As I pointed in the comment below, that was a concept,...
How to refresh app upon shaking the device?
..., and, lets say >2 if the device is shaked.
Based on the comments - to test this:
if (mAccel > 12) {
Toast toast = Toast.makeText(getApplicationContext(), "Device has shaken.", Toast.LENGTH_LONG);
toast.show();
}
Notes:
The accelometer should be deactivated onPause and activated o...
How to overcome TypeError: unhashable type: 'list'
...
@msh855 is there any size limit? I tested the dictionary with a tuple of size 100,000 and it worked fine for me (I'm using python 3.6)
– Sreram
Jan 9 at 17:19
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Should I use past or present tense in git commit messages? [closed]
...t git commit messages should be in the imperative present tense, e.g. "Add tests for x". I always find myself using the past tense, e.g. "Added tests for x" though, which feels a lot more natural to me.
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jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
...e to provided. This tells Maven use code servlet-api.jar for compiling and testing only, but NOT include it in the WAR file. The deployed container will “provide” the servlet-api.jar at runtime.
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-ap...
RuntimeWarning: DateTimeField received a naive datetime
...
You can also override settings, particularly useful in tests:
from django.test import override_settings
with override_settings(USE_TZ=False):
# Insert your code that causes the warning here
pass
This will prevent you from seeing the warning, at the same time anything ...