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Anonymous recursive PHP functions
...rence
$factorial = function( $n ) use ( &$factorial ) {
if( $n == 1 ) return 1;
return $factorial( $n - 1 ) * $n;
};
print $factorial( 5 );
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For each row in an R dataframe
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105
You can try this, using apply() function
> d
name plate value1 value2
1 A P1 ...
How to state in requirements.txt a direct github source
...nt to particular commit:
-e git://github.com/mozilla/elasticutils.git@000b14389171a9f0d7d713466b32bc649b0bed8e#egg=elasticutils
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What does %~d0 mean in a Windows batch file?
...arguments used to invoke the file: %0 is the path to the bat-file itself, %1 is the first argument after, %2 is the second and so on.
Since the arguments are often file paths, there is some additional syntax to extract parts of the path. ~d is drive, ~p is the path (without drive), ~n is the file n...
What is the JSF resource library for and how should it be used?
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1 Answer
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FAT32系统中长文件名的存储 - C/C++ - 清泛网 - 专注C/C++及内核技术
...统会自动加上对应的短文件名，其一般有的原则：
(1)、取长文件名的前6个字符加上"~1"形成短文件名，扩展名不变。
(2)、如果已存在这个文件名，则符号"~"后的数字递增，直到5。
(3)、如果文件名中"~"后面的数字达到...
How to get first element in a list of tuples?
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Accessing dict keys like an attribute?
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313
The best way to do this is:
class AttrDict(dict):
def __init__(self, *args, **kwargs):
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Is there an expression for an infinite generator?
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134
for x in iter(int, 1): pass
Two-argument iter = zero-argument callable + sentinel value
int...
C Macro definition to determine big endian or little endian machine?
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19 Answers
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