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How do I forward declare an inner class? [duplicate]
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This is simply not possible. You cannot forward declare a nested structure outside the container. You can only forward declare it within the container.
You'll need to do one of the following
Make the class non-nested
Change your declaration order so that the...
Setting Curl's Timeout in PHP
I'm running a curl request on an eXist database through php. The dataset is very large, and as a result, the database consistently takes a long amount of time to return an XML response. To fix that, we set up a curl request, with what is supposed to be a long timeout.
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slf4j: how to log formatted message, object array, exception
What is the correct approach to log both a populated message and a stack trace of the exception?
2 Answers
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How to print to console in pytest?
...execution any output sent to stdout and stderr is captured. If a test or a setup method fails its according captured output will usually be shown along with the failure traceback.
pytest has the option --capture=method in which method is per-test capturing method, and could be one of the followin...
How to print a date in a regular format?
...list, you have printed a list of objects and Python tried to represent the set of data, using repr().
The How: what do you want to do with that?
Well, when you manipulate dates, keep using the date objects all long the way. They got thousand of useful methods and most of the Python API expect dates ...
getenv() vs. $_ENV in PHP
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Added getenv() advantage: you don't need to check isset/empty before access. getenv() won't emit notices.
– Steve Clay
Apr 8 at 18:28
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Ruby function to remove all white spaces?
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@slothbear, it's not a regex, it's a small set of patterns that resemble regexes. As for the documentation #delete is said to work similarly to #count. You can try it in the console as well.
– ndnenkov
Feb 5 '17 at 15:36
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Python: finding an element in a list [duplicate]
What is a good way to find the index of an element in a list in Python?
Note that the list may not be sorted.
10 Answers
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Under what circumstances are linked lists useful?
... affect visible performance much. In a busy-CPU benchmark it was easy to upset Java, and get very bad worst case allocation time. This was many years ago, though, and generational garbage collection has markedly reduced the total cost of GC since.
– Steve Jessop
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Remove all the elements that occur in one list from another
...tor isn't that efficient on a list. in on a list is O(n), whereas in on a set is O(1). However, until you get to thousands of elements or more, you're unlikely to notice the difference.
– Daniel Pryden
Nov 18 '10 at 3:10
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