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\d is less efficient than [0-9]
I made a comment yesterday on an answer where someone had used [0123456789] in a regular expression rather than [0-9] or \d . I said it was probably more efficient to use a range or digit specifier than a character set.
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How do I do an initial push to a remote repository with Git?
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answered Feb 25 '10 at 20:27
Josh LindseyJosh Lindsey
7,22722 gold badges2121 silver badges2525 bronze badges
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How to specify the default error page in web.xml?
...rror page when user encounters a certain error such as error with code of 404:
3 Answers
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How to initialize a vector in C++ [duplicate]
...is with an array:
int vv[2] = { 12,43 };
std::vector<int> v(&vv[0], &vv[0]+2);
Or, for the case of assignment to an existing vector:
int vv[2] = { 12,43 };
v.assign(&vv[0], &vv[0]+2);
Like James Kanze suggested, it's more robust to have functions that give you the beginni...
Outline radius?
...mooth outline with box-shadow: */
.text1:focus {
box-shadow: 0 0 3pt 2pt red;
}
/* Hard "outline" with box-shadow: */
.text2:focus {
box-shadow: 0 0 0 2pt red;
}
<input type=text class="text1">
<br>
<br>
<br>
<br>
<...
How can building a heap be O(n) time complexity?
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490
I think there are several questions buried in this topic:
How do you implement buildHeap so it ...
Add property to anonymous type after creation
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answered Jul 19 '11 at 20:40
LevitikonLevitikon
7,15188 gold badges5050 silver badges7070 bronze badges
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Delete all but the most recent X files in bash
...here's no input.
If you have BSD xargs (including on macOS), you can use -0 to handle NUL-separated input, after first translating newlines to NUL (0x0) chars., which also passes (typically) all filenames at once (will also work with GNU xargs):
ls -tp | grep -v '/$' | tail -n +6 | tr '\n' '\0' | ...
Inherit docstrings in Python class inheritance
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answered Jan 8 '10 at 4:51
John FeminellaJohn Feminella
272k3939 gold badges320320 silver badges337337 bronze badges
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Does deleting a branch in git remove it from the history?
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answered Apr 10 '10 at 15:57
CB BaileyCB Bailey
610k9090 gold badges596596 silver badges628628 bronze badges
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