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Django in / not in query
... Was trying to use this solution and ran into a problem, so if it happens to anyone else... Objs=Tbl1.objects.filter(...); IDs=Objs.values_list('id', flat=True); Objs.delete(); Tbl2.objects.filter(id__in=IDs') This did not work because IDs is actually a QuerySet object. When I deleted...
Create a string of variable length, filled with a repeated character
... new repeat function built into String.prototype handles this now (ES6+)
– AlexMA
Oct 18 '16 at 18:05
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How to generate JAXB classes from XSD?
...eeds. A standard format allows reader applications to display feeds from different sources. In this example we will process the Atom feed for this blog.
Demo
In this example we will use JAXB to convert the Atom XML feed corresponding to this blog to objects and then back to XML.
import java.io....
Python list directory, subdirectory, and files
...ntage of pathlib is that you can use a variety of useful methods on paths. If you use the concrete Path variant you can also do actual OS calls through them, like changing into a directory, deleting the path, opening the file it points to and much more.
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What’s the best way to check if a file exists in C++? (cross platform)
I have read the answers for What's the best way to check if a file exists in C? (cross platform) , but I'm wondering if there is a better way to do this using standard c++ libs? Preferably without trying to open the file at all.
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How do I programmatically determine operating system in Java?
... Please note that the access to "com/sun/javafx/*" is discouraged now (checked it with JDK 1.8.0_121).
– Michael Marton
Jan 14 '18 at 12:27
1
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How to make a countdown timer in Android?
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What if I wanted to base the CountDownTimer on a set alarm? How do I know how many milisUntilFinished?
– Kala J
Nov 7 '14 at 12:54
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How to send multiple data fields via Ajax? [closed]
...
The correct syntax is:
data: {status: status, name: name},
As specified here: http://api.jquery.com/jQuery.ajax/
So if that doesn't work, I would alert those variables to make sure they have values.
share
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Qt 5.1.1: Application failed to start because platform plugin “windows” is missing
... comment which had been ignored by all users pointing to the missing lib. Now, many months later, the comment has been changed to an answer. However, when I answered this question by msyself I intended to help other people by directly providing the solution. This should not be forgotten and so far ...
How to check for null in Twig?
... on what exactly you need:
is null checks whether the value is null:
{% if var is null %}
{# do something #}
{% endif %}
is defined checks whether the variable is defined:
{% if var is not defined %}
{# do something #}
{% endif %}
Additionally the is sameas test, which does a type st...