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Declaring variables inside or outside of a loop
...lity.
Performance doesn't matter for today's compilers.(in this scenario)
From a maintenance perspective, 2nd option is better.
Declare and initialize variables in the same place, in the narrowest scope possible.
As Donald Ervin Knuth told:
"We should forget about small efficiencies, say about...
Set ImageView width and height programmatically?
... Vote up because one day you were my boss and I'm still learning from you Hakim :)
– Sami Eltamawy
May 5 '15 at 8:40
10
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Android: set view style programmatically
... to doc "Sets the text color, size, style, hint color, and highlight color from the specified TextAppearance resource." developer.android.com/reference/android/widget/…, int)
– Rogel Garcia
Feb 24 '14 at 18:09
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How do I replace a git submodule with another repo?
...d here, which I'm including for convenience:
Delete the relevant section from the .gitmodules file
Delete the relevant section from .git/config
Run git rm --cached path_to_submodule (no trailing slash)
Commit and delete the now untracked submodule files
Now, add the new submodule with the --name...
Purge Kafka Topic
...room-data --config retention.ms=1000 WARNING: Altering topic configuration from this script has been deprecated and may be removed in future releases. Going forward, please use kafka-configs.sh for this functionality
– Alper Akture
Nov 18 '15 at 19:42
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Are memory leaks ever ok? [closed]
... a memory leak and it can impair your program. Future allocations can fail from this proces because I am sure you are checking that malloc returned non nil everywhere. by over using memory, such as in an embedded situation where memor is scarce this could be the difference between life and death.
...
What is the difference between .*? and .* regular expressions?
... Can you explain or show an example of how the greedy ? differs from the non-greedy ?? ?
– AdrianHHH
Nov 25 '15 at 15:36
4
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Equivalent of Math.Min & Math.Max for Dates?
...what the values contain, compare them and then create a new DateTime value from the result:
new DateTime(Math.Min(Date1.Ticks, Date2.Ticks))
(Note that the DateTime structure also contains a Kind property, that is not retained in the new value. This is normally not a problem; if you compare DateT...
Display filename before matching line
...ith the built-in Mac grep (2.5.1-FreeBSD). But to use the alternative grep from Homebrew, another way is to run brew install grep and then just use ggrep. No need to modify PATH.
– wonderlr
Jun 4 '19 at 16:11
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Getting indices of True values in a boolean list
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For huge lists, it'd be better to use itertools.compress:
>>> from itertools import compress
>>> list(compress(xrange(len(t)), t))
[4, 5, 7]
>>> t = t*1000
>>> %timeit [i for i, x in enumerate(t) if x]
100 loops, best of 3: 2.55 ms per loop
>>> %timei...