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Checking for a dirty index or untracked files with Git
...an error occurred” (exit non-zero, but probably 128). But checking for 0 vs. 1 vs. non-zero exit codes is probably fairly robust:
git ls-files --others --error-unmatch . >/dev/null 2>&1; ec=$?
if test "$ec" = 0; then
echo some untracked files
elif test "$ec" = 1; then
echo no un...
How can you diff two pipelines in Bash?
...ll more clearly remind you which input was which, by showing
-- /dev/stdin vs. ++ /dev/fd/63 or something, instead of two numbered fds.
Not even a named pipe will appear in the filesystem, at least on OSes where bash can implement process substitution by using filenames like /dev/fd/63 to get a f...
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
...r. I think Docker documentation should add this under a section called CMD vs ENTRYPOINT.
– Tarik
Dec 28 '16 at 19:37
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Why is arr = [] faster than arr = new Array?
...here you know the size of the array ahead of time jsperf.com/square-braces-vs-new-array
– Y. Yoshii
Dec 10 '19 at 3:59
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Why does PHP 5.2+ disallow abstract static class methods?
...ented getSelectSQL() in all children.
– Artem Russakovskii
Jun 16 '09 at 0:21
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Most likely, you ...
What is the difference between bottom-up and top-down?
...em anymore.)
[Previously, this answer made a statement about the top-down vs bottom-up terminology; there are clearly two main approaches called Memoization and Tabulation that may be in bijection with those terms (though not entirely). The general term most people use is still "Dynamic Programming...
Understanding what 'type' keyword does in Scala
...ease see this excellent answer for more details:
Scala: Abstract types vs generics
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Why do we need tuples in Python (or any immutable data type)?
...d you'll see a more meaningful speedup of 2-3 times for building the tuple vs building the list.
– Alex Martelli
Feb 1 '10 at 21:23
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Typescript: difference between String and string
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I've added an answer to clarify that "foo" vs new String("foo") isn't a new distinction introduced by TypeScript - I don't think it's helpful to call one a JS type and the other a TS type.
– Joe Lee-Moyet
Jan 25 '16 at 13:46
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How to have an auto incrementing version number (Visual Studio)? [duplicate]
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community wiki
5 revs, 5 users 80%Matthieu
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