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Why doesn't await on Task.WhenAll throw an AggregateException?
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I don't exactly remember where, but I read somewhere that with new async/await keywords, they unwrap the AggregateException into the actual exception.
So, in catch block, you get the actual exception and not the aggregated one. This helps us write more natural an...
How to execute file I'm editing in Vi(m)
... it allows launching sequence of commands that are connected with pipe and read stdout.
For example:
! node %
is equivalent to opening command prompt window and launching commands:
cd my_current_directory
node my_current_file
See "Vim tips: Working with external commands" for details.
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Parcelable encountered IOException writing serializable object getactivity()
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I just had read the caused by, did'nt knew this for almost 3 years developing.
– Sterling Diaz
Mar 19 '15 at 15:17
1...
Difference between Java SE/EE/ME?
...ng intellisense and autocompletion is an invaluable aid for a programmer already knowing other ecosystems to became familiar with the new environment.
– Felice Pollano
Mar 22 '15 at 7:29
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How do I convert dates in a Pandas data frame to a 'date' data type?
...iles, in which case you can simply convert the date during the initial CSV read:
dfcsv = pd.read_csv('xyz.csv', parse_dates=[0]) where the 0 refers to the column the date is in.
You could also add , index_col=0 in there if you want the date to be your index.
See https://pandas.pydata.org/pandas-do...
How do I design a class in Python?
...ing like:
dog.footstep(0)
Now, it may be that for your case you need to read in your raw data file and compute the footstep locations. All this could be hidden in the footstep() function so that it only happens once. Something like:
class Dog:
def __init__(self):
self._footsteps=None
...
Docker and securing passwords
...) or --env-file argument (for multiple variables in a file) to docker run. Read this for using environmental with docker-compose.
Using --env-file is definitely a safer option since this protects against the secrets showing up in ps or in logs if one uses set -x.
However, env vars are not particul...
How can I create tests in Android Studio?
...w project and you will see the following default folders.
Everything is already there and waiting for you to create your tests. It's all set up already!
How to create local unit tests
Open the ExampleUnitTest file shown in the image above. it should look something like this:
public class ExampleUni...
What are the differences between GPL v2 and GPL v3 licenses? [closed]
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The page linked to in another answer is a good source, but a lot to read. Here is a short list of some of the major differences:
internationalization: they used new terminology, rather than using language tied to US legal concepts
patents: they specifically address patents (including the M...
How to use filter, map, and reduce in Python 3
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You can read about the changes in What's New In Python 3.0. You should read it thoroughly when you move from 2.x to 3.x since a lot has been changed.
The whole answer here are quotes from the documentation.
Views And Iterators Instea...