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How can I validate a string to only allow alphanumeric characters in it?
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Akshay Khot
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answered Jun 25 '09 at 23:47
cletuscletus
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How to convert a data frame column to numeric type?
... a 1
2 b 2 2 b 2
3 c 3 3 c 3
4 d 4 4 d 4
5 e 5 5 e 5
and let us run:
> sapply(d, mode)
char fake_char fac char_fac num
"character" "character" "numeric" "numeric" "numer...
How to use glob() to find files recursively?
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1411
pathlib.Path.rglob
Use pathlib.Path.rglob from the the pathlib module, which was introduced in...
How are the points in CSS specificity calculated
...ase is.
It turns out that the "very large base" employed (at least by the 4 most commonly-used browsers*) to implement this standard algorithm is 256 or 28.
What this means is that a style specified with 0 ids and 256 class-names will over-ride a style specified with just 1 id. I tested this out...
Delaying a jquery script until everything else has loaded
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Jose BasilioJose Basilio
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How do I count unique values inside a list
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answered Sep 5 '12 at 19:04
VidulVidul
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Convert data.frame column to a vector?
... joranjoran
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6
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解决：CTreeCtrl控件SetCheck无效的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
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1、在资源中添加一个位图资源IDB_BITMAP1，尺寸拉伸成48*16。（长48，高16，共三个图标）
2、在位图上面画三个图标，每个大小都是16*16，第二个是X，第三个是选择（对勾）。至于第一个
的用途，还不清楚。
3、在...
How to sort git tags by version string order of form rc-X.Y.Z.W?
...keRobert Mutke
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PHP function to make slug (URL string)
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455
Instead of a lengthy replace, try this one:
public static function slugify($text)
{
// repl...