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Using JQuery to check if no radio button in a group has been checked
...could just change it to .val() == "" and remove the ! and you would be all set.
– Doug Neiner
Jan 15 '10 at 21:08
@Dou...
Is there a Mutex in Java?
...
Mistake in original post is acquire() call set inside the try loop.
Here is a correct approach to use "binary" semaphore (Mutex):
semaphore.acquire();
try {
//do stuff
} catch (Exception e) {
//exception stuff
} finally {
semaphore.release();
}
...
Why am I seeing “TypeError: string indices must be integers”?
...s, you need to use the iterrows() function to iterate through a Pandas dataset Pandas documentation for iterrows
data = pd.read_csv('foo.csv')
for index,item in data.iterrows():
print('{} {}'.format(item["gravatar_id"], item["position"]))
note that you need to handle the index in the dataset ...
Set Matplotlib colorbar size to match graph
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If I set shrink 1.0 and fraction to anything, it shrinks the graph, not affecting the colorbar size at all, until changing fraction causes it to be exactly what I already have, at which point changing them stops doing anything.
...
Can I have multiple :before pseudo-elements for the same element?
... :before pseudo-element, but normal CSS imply that only one of the content settings can take effect (by normal cascade rules). The point is that content does not accumulate.
– Jukka K. Korpela
Aug 17 '12 at 9:47
...
Show a number to two decimal places
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You can use number_format():
return number_format((float)$number, 2, '.', '');
Example:
$foo = "105";
echo number_format((float)$foo, 2, '.', ''); // Outputs -> 105.00
This function returns a string.
...
How do I use the nohup command without getting nohup.out?
...criptor", or "fd" for short. Every running program ("process") has its own set of these, and when a new process starts up it has three of them already open: "standard input", which is fd 0, is open for the process to read from, while "standard output" (fd 1) and "standard error" (fd 2) are open for ...
Django Rest Framework File Upload
...an example of file upload, but my case is simpler since I use the ModelViewSet instead of APIView. The key turned out to be the pre_save hook. I ended up using it together with the angular-file-upload module like so:
# Django
class ExperimentViewSet(ModelViewSet):
queryset = Experiment.objects...
How do I escape double quotes in attributes in an XML String in T-SQL?
...t;mom" lol"
**edit: ** tested; works fine:
declare @xml xml
set @xml = '<transaction><item value="hi &quot;mom&quot; lol"
ItemId="106" ItemType="2" instanceId="215923801" dataSetId="1" /></transaction>'
select @xml.value('(//item/@value)[1]','varchar...
Check whether an array is a subset of another
Any idea on how to check whether that list is a subset of another?
8 Answers
8
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