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How JavaScript closures are garbage collected
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But, once the setTimeout() callback runs, that function scope of the setTimeout() callback is done and that whole scope should be garbage collected, releasing its reference to some. There is no longer any code that can run that can reach the...
Unicode equivalents for \w and \b in Java regular expressions?
Many modern regex implementations interpret the \w character class shorthand as "any letter, digit, or connecting punctuation" (usually: underscore). That way, a regex like \w+ matches words like hello , élève , GOÄ_432 or gefräßig .
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How do I get the first n characters of a string without checking the size or going out of bounds?
How do I get up to the first n characters of a string in Java without doing a size check first (inline is acceptable) or risking an IndexOutOfBoundsException ?
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How to fix corrupted git repository?
..._base} before continuing"
if ! wget -p "${url_base}" -O /dev/null -q --dns-timeout=5 --connect-timeout=5 ;
then
echo "Unable to reach ${url_base}: Aborting before any damage is done" >&2
exit 4
fi
echo
echo "This operation will replace the local repo with the remote at:"
echo "${url}...
Emulate a do-while loop in Python?
... emulate a do-while loop in a Python program. Unfortunately, the following straightforward code does not work:
16 Answers
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How to remove a project (from the workspace) in PHPStorm?
...Delete or Backspace (just as Gordon, I didn't need to press Fn at the same time). I'm using PhpStorm 8 on Ubuntu 14.
– Nic Wortel
Jan 6 '15 at 14:25
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Removing colors from output
I have some script that produces output with colors and I need to remove the ANSI codes.
13 Answers
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Storing C++ template function definitions in a .CPP file
...d of foo.cpp as compiling the latter does nothing; just wastes compilation time.
Of course, you can have multiple implementations in the third file or have multiple implementation files for each type you'd like to use.
This enables much more flexibility when sharing the templated class for other use...
What is the difference between `after_create` and `after_save` and when to use which?
...rks once - just after the record is first created.
after_save works every time you save the object - even if you're just updating it many years later
So if you want to do this email operation only just the once (and then never again) then use after_create.
If you want to do it every time the obje...
Why are mutable structs “evil”?
Following the discussions here on SO I already read several times the remark that mutable structs are “evil” (like in the answer to this question ).
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