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Check for installed packages before running install.packages() [duplicate]
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I made a function with if (!pacote %in% installed.packages()) install.packages(pacote) in it. That was good and elegant enough, thanks!
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Getting a map() to return a list in Python 3.x
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lenses, fclabels, data-accessor - which library for structure access and mutation is better
...kage includes the template-haskell plumbing, so the package is not Haskell 98, and it also requires the (fairly non-controversial) TypeOperators extension.
data-accessor
[Edit: data-accessor is no longer using this representation, but has moved to a form similar to that of data-lens. I'm keeping t...
Localization of DisplayNameAttribute
...er to Public.
– thatWiseGuy
Feb 2 '19 at 15:33
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How to escape single quotes within single quoted strings
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Craig Gidney
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answered Aug 9 '09 at 0:52
lioriliori
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How to sort two lists (which reference each other) in the exact same way
...;>> %timeit zip(*sorted(zip(list1, list2)))
100 loops, best of 3: 8.09 ms per loop
>>> %timeit tups = zip(list1, list2); tups.sort(); zip(*tups)
100 loops, best of 3: 8.51 ms per loop
As Quantum7 points out, JSF's suggestion is a bit faster still, but it will probably only ever be a...
How to make a phone call programmatically?
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edited Oct 9 '13 at 15:17
The Alpha
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In Android EditText, how to force writing uppercase?
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edited May 22 '18 at 9:54
Kaushik
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string sanitizer for filename
...ou are happy to be used? For example, you could allow just good ol' a-z, 0-9, _, and a single instance of a period (.). That's obviously more limiting than most filesystems, but should keep you safe.
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Why does Java switch on contiguous ints appear to run faster with added cases?
...0x00000000024f01a5
0x00000000024f0176: cmp edx,0x1
0x00000000024f0179: je 0x00000000024f019b
0x00000000024f017b: cmp edx,0x1
0x00000000024f017e: jg 0x00000000024f0191
0x00000000024f0180: test edx,edx
0x00000000024f0182: je 0x00000000024f01cb
0x00000000024f0184: mov ...