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NumPy or Pandas: Keeping array type as integer while having a NaN value
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This capability has been added to pandas (beginning with version 0.24):
https://pandas.pydata.org/pandas-docs/version/0.24/whatsnew/v0.24.0.html#optional-integer-na-support
At this point, it requires the use of extension dtype Int64 (capitalized), rather than the default dtype int64 (lowerc...
How does JPA orphanRemoval=true differ from the ON DELETE CASCADE DML clause
I am a little confused about the JPA 2.0 orphanRemoval attribute.
8 Answers
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How do I detach objects in Entity Framework Code First?
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MongoDB: How to update multiple documents with a single command?
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Skip Git commit hooks
... dry-run push.
Only git push --no-verify would skip the hook.
Note: Git 2.14.x/2.15 improves the --no-verify behavior:
See commit 680ee55 (14 Aug 2017) by Kevin Willford (``).
(Merged by Junio C Hamano -- gitster -- in commit c3e034f, 23 Aug 2017)
commit: skip discarding the index if there...
Is there a limit to the length of HTML attributes?
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269
HTML 4
From an HTML 4 perspective, attributes are an SGML construct. Their limits are define...
What is the logic behind the “using” keyword in C++?
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120
In C++11, the using keyword when used for type alias is identical to typedef.
7.1.3.2
A typede...
Convert generic List/Enumerable to DataTable?
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27 Answers
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jQuery checkbox checked state changed event
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1268
Bind to the change event instead of click. However, you will probably still need to check whet...
Why use @PostConstruct?
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because when the constructor is called, the bean is not yet initialized - i.e. no dependencies...