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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
...
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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What is a “callback” in C and how are they implemented?
...ling in a Standard C mode with warnings on. You can also write a minimised test program. Code such as those in libsrtp gives no warnings. I presume, then, that when such a type appears as a function argument, it is required to 'decay' to a pointer-to-function, just like arrays decay to pointers to t...
How can I know which parts in the code are never used?
...You run the code coverage tool with a good set of varied inputs (your unit-tests or non-regression tests), the dead code is necessarily within the unreached code... and so you can start from here.
If you are extremely interested in the subject, and have the time and inclination to actually work ou...
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
...
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 ...
jQuery UI Dialog with ASP.NET button postback
...nd Google Chrome. I start to love jQuery... It's a cool framework.
I have tested with partial render too, exactly what I was looking for. Great!
<script type="text/javascript">
function openModalDiv(divname) {
$('#' + divname).dialog({ autoOpen: false, bgiframe: true, modal: true...
Write applications in C or C++ for Android? [closed]
...vided libs if required
Connect to a phone using provided
adb interface and test your
executable
If you are looking to sell an app:
Build a library from your C code
Create simple Java code which will
use this library
Embed this library into application
package file
Test your app
Sell it or distr...
Best way to split string into lines
...|\r")
Except that Regex turns out to be about 10 times slower. Here's my test:
Action<Action> measure = (Action func) => {
var start = DateTime.Now;
for (int i = 0; i < 100000; i++) {
func();
}
var duration = DateTime.Now - start;
Console.WriteLine(duration...