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Safe (bounds-checked) array lookup in Swift, through optional bindings?
...to access an index that is out of bounds, there is an unsurprising runtime error:
19 Answers
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IllegalArgumentException or NullPointerException for a null parameter? [closed]
...hing different as a result? Are you trying to communicate a more specific error message? But you can do that in the exception message text anyway, as you should for all other incorrect parameters.
Fourth, all other incorrect parameter data will be IAE, so why not be consistent? Why is it that an...
Does Python have “private” variables in classes?
...t will fail:
>>>x = A()
>>>x.__var # this will return error: "A has no attribute __var"
>>>x.printVar() # this gives back 123
But you can easily get away with this:
>>>x.__dict__ # this will show everything that is contained in object x
# w...
How to customize a Spinner in Android
...height value to "?attr/dropdownListPreferredItemHeight" or you will get an error: "Error: Attribute is not public"
– Loenix
Jun 14 '16 at 6:05
9
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How to speed up insertion performance in PostgreSQL
...here's no practical limit AFAIK, but batching will let you recover from an error by marking the start of each batch in your input data. Again, you seem to be doing this already.
Use synchronous_commit=off and a huge commit_delay to reduce fsync() costs. This won't help much if you've batched your wo...
“ArrayAdapter requires the resource ID to be a TextView” xml problems
I am getting an error when trying to set my view to display the ListView for the file I want to display(text file). I am pretty sure it has something to do with the xml. I just want to display the information from this.file = fileop.ReadFileAsList("Installed_packages.txt"); . My code:
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Transfer git repositories from GitLab to GitHub - can we, how to and pitfalls (if any)?
...ssue with the https URL of the GitHub repo:
The requested URL returned an error: 403
All you need to do is to enter your GitHub password, but the OP suggests:
Then you might need to push it the ssh way. You can read more on how to do it here.
See "Pushing to Git returning Error Code 403 fat...
How to change Git log date formats
...nd it, please comment) so I originally found the placeholders by trial and error.
In my search for documentation on this I found a commit to Git itself that indicates the format is fed directly to strftime. Looking up strftime (here or here) the placeholders I found match the placeholders listed.
Th...
How do I check if a list is empty?
...eq = numpy.array([1,2,3]) followed by if not seq raises an exception "ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()"
– Mr.WorshipMe
Mar 20 '19 at 18:03
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What is the difference between SqlCommand.CommandTimeout and SqlConnection.ConnectionTimeout?
...eeds SqlCommand.CommandTimeout, then it stops execution. A command timeout error will occur.
SqlConnection.ConnectionTimeout = timeout limit for your connection. Means, how much time your connection object can try to connect. If it exceeds the specified time, it stops connecting. A connection timeo...