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What is a sealed trait?
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A sealed trait can be extended only in the same file as its declaration.
They are often used ...
setuptools vs. distutils: why is distutils still a thing?
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How to swap files between windows in VIM?
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Holger Just
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answered Feb 9 '10 at 10:45
DrAlDrAl
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Is pass-by-value a reasonable default in C++11?
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Why is the .bss segment required?
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LundinLundin
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What is a “Stub”?
... what would be returned from the web server.
– user3344977
Feb 13 '17 at 2:22
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What is the difference between NaN and None?
... reason to use NaN (over None) is that it can be stored with numpy's float64 dtype, rather than the less efficient object dtype, see NA type promotions.
# without forcing dtype it changes None to NaN!
s_bad = pd.Series([1, None], dtype=object)
s_good = pd.Series([1, np.nan])
In [13]: s_bad.dtype
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Effect of NOLOCK hint in SELECT statements
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edited Apr 15 '15 at 17:44
answered Oct 16 '08 at 20:43
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