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Hide separator line on one UITableViewCell
... by moving it to the far right
cell.separatorInset = UIEdgeInsetsMake(0, 10000, 0, 0);
This API is only available starting from iOS 7 though.
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ab load testing
...t file(in Windows) like this:
bench.bat
"c:\xampp\apache\bin\abs.exe" -n 10000 http://localhost/bench/void.php
"c:\xampp\apache\bin\abs.exe" -n 10000 http://localhost/bench/bench.php
pause
Now if you pay attention closely ...
the void script isn't produce zero results !!!
SO THE CONCLUSION IS: ...
Accessing items in an collections.OrderedDict by index
...edDict(zip(arange(1000),random.random(1000)))
In [4]: timeit id.keys()[56]
1000000 loops, best of 3: 969 ns per loop
In [8]: from collections import OrderedDict
In [9]: od=OrderedDict(zip(arange(1000),random.random(1000)))
In [10]: timeit od.keys()[56]
10000 loops, best of 3: 104 µs per loop
Ind...
NumPy array initialization (fill with identical values)
...s fastest.
In descending speed order:
%timeit a=np.empty(1e4); a.fill(5)
100000 loops, best of 3: 5.85 us per loop
%timeit a=np.empty(1e4); a[:]=5
100000 loops, best of 3: 7.15 us per loop
%timeit a=np.ones(1e4)*5
10000 loops, best of 3: 22.9 us per loop
%timeit a=np.repeat(5,(1e4))
10000 loop...
马云、王健林为什么都看中了上海？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...乎看准了这个时机，将公司业务核心从“商业地产、高级酒店、文化旅游和连锁百货产业”向金融转型。
除了“陆九条”，上海去年也颁布了两项其他金融扶持政策。上海政府将提供战略性新兴产业发展专项资金、服务业发...
How to calculate age (in years) based on Date of Birth and getDate()
...ECT
(CONVERT(int,CONVERT(char(8),@Now,112))-CONVERT(char(8),@Dob,112))/10000 AS AgeIntYears
you can change the above 10000 to 10000.0 and get decimals, but it will not be as accurate as the method below.
BEST METHOD FOR YEARS IN DECIMAL
DECLARE @Now datetime, @Dob datetime
SELECT @Now='19...
Rank items in an array using Python/NumPy, without sorting array twice
...om scipy.stats import rankdata
l = list(reversed(range(1000)))
%%timeit -n10000 -r5
x = (rankdata(l) - 1).astype(int)
>>> 128 µs ± 2.72 µs per loop (mean ± std. dev. of 5 runs, 10000 loops each)
%%timeit -n10000 -r5
a = np.array(l)
r = a.argsort().argsort()
>>> 69.1 µs ± 46...
Measuring function execution time in R
... short function I prefer to put replicate() in it:
system.time( replicate(10000, myfunction(with,arguments) ) )
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Filtering a list based on a list of booleans
...True, False, True, False]
>>> %timeit list(compress(list_a, fil))
100000 loops, best of 3: 2.58 us per loop
>>> %timeit [i for (i, v) in zip(list_a, fil) if v] #winner
100000 loops, best of 3: 1.98 us per loop
>>> list_a = [1, 2, 4, 6]*100
>>> fil = [True, False...
is_file or file_exists in PHP
...enchmark('is_readable');
function benchmark($funcName) {
$numCycles = 10000;
$time_start = microtime(true);
for ($i = 0; $i < $numCycles; $i++) {
clearstatcache();
$funcName('path/to/file.php'); // or 'path/to/file.php' instead of __FILE__
}
$time_end = microt...