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When to wrap quotes around a shell variable?
...t need quotes since it's a numeric value. Whether $URL needs it depends on what you allow in there and whether you still want an argument if it's empty.
I tend to always quote strings just out of habit since it's safer that way.
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mingw-w64 threads: posix vs win32
...Windows and there are two options: win32 threads and posix threads. I know what is the difference between win32 threads and pthreads but I don't understand what is the difference between these two options. I doubt that if I will choose posix threads it will prevent me from calling WinAPI functions l...
Why are we not to throw these exceptions?
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What might also be somewhat related, NullReferenceException is usually internally thrown as a special case of an AccessViolationException (IIRC the test is something like cmp [addr], addr, ie. it tries to dereference the poin...
Refresh a page using PHP
...ow can I refresh a page using PHP periodically? If I can not do it by PHP, what is the best recommended scenario?
13 Answer...
Is there shorthand for returning a default value if None in Python? [duplicate]
...@starhusker's x or "default". Often I used to use the ternary sytax b/c I what to do x.value if X might be None. So x.value if x else "default", but this is more readable getattr(obj, "value", "default"). The trade off is that the later is not caught by many auto-refactor tools.
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What are the “standard unambiguous date” formats for string-to-date conversion in R?
...site, mm-dd is not a date (neither is mm-yy or mm-yyyy). You cannot parse what it is not there.
– Dirk Eddelbuettel
May 23 at 18:44
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Why is x86 ugly? Why is it considered inferior when compared to others? [closed]
...d the instructions just do more, so you often need a bigger explanation of what they do than a listing can provide. For example, the MOVSB instruction needs a relatively large block of C code to describe what it does:
if (DF==0)
*(byte*)DI++ = *(byte*)SI++;
else
*(byte*)DI-- = *(byte*)SI--;
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How to filter Pandas dataframe using 'in' and 'not in' like in SQL
...cepts various types as inputs. The following are all valid ways of getting what you want:
df['countries'].isin(c1)
0 False
1 True
2 False
3 False
4 True
Name: countries, dtype: bool
# `in` operation
df[df['countries'].isin(c1)]
countries
1 UK
4 China
# `not in` ope...
Change MySQL default character set to UTF-8 in my.cnf?
...now... your question didn't specify it directly so I am not sure if that's what you want to do.
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How to preview git-pull without doing fetch?
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What works for me (after the git fetch): git log origin/master
– slaman
Oct 28 '16 at 18:29
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