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Java: random long number in 0
...extLong(long bound) method.
long v = ThreadLocalRandom.current().nextLong(100);
It also has nextLong(long origin, long bound) if you need an origin other than 0. Pass the origin (inclusive) and the bound (exclusive).
long v = ThreadLocalRandom.current().nextLong(10,100); // For 2-digit integers,...
How to read a file line-by-line into a list?
...octis Skytower
18k1414 gold badges7070 silver badges100100 bronze badges
31
...
mfc里面的140种颜色宏 - C/C++ - 清泛网 - 专注C/C++及内核技术
...225) // 皇家蓝 (宝蓝)
#define CLR_CORNFLOWERBLUE RGB(100, 149, 237) // 矢车菊蓝
#define CLR_LIGHTSTEELBLUE RGB(176, 196, 222) // 亮钢蓝
#define CLR_LIGHTSLATEGRAY RGB(119, 136, 153) // 亮石板灰
#define CLR_SLATEGRAY ...
initialize a numpy array
...iter() might be slower than np.array(). timeit("np.array(i for i in xrange(100))", setup="import numpy as np", number = 10000) -> 0.02539992332458496, versus timeit("np.fromiter((i for i in xrange(100)), dtype=int)", setup="import numpy as np", number = 10000) -> 0.13351011276245117
...
Clear a terminal screen for real
...n
\033 == \x1B == 27 == ESC
So this becomes <ESC>c which is the VT100 escape code for resetting the terminal. Here is some more information on terminal escape codes.
Edit
Here are a few other ways of doing it...
printf "\ec" #\e is ESC in bash
echo -en "\ec" #thanks @Jonathon Reinhart.
#...
What's the better (cleaner) way to ignore output in PowerShell? [closed]
...d some tests of the four options that I know about.
Measure-Command {$(1..1000) | Out-Null}
TotalMilliseconds : 76.211
Measure-Command {[Void]$(1..1000)}
TotalMilliseconds : 0.217
Measure-Command {$(1..1000) > $null}
TotalMilliseconds : 0.2478
Measure-Command {$null = $(1..1000)}
TotalMil...
What's the idiomatic syntax for prepending to a short python list?
...performance tests of proposed methods:
Python 2.7.8
In [1]: %timeit ([1]*1000000).insert(0, 0)
100 loops, best of 3: 4.62 ms per loop
In [2]: %timeit ([1]*1000000)[0:0] = [0]
100 loops, best of 3: 4.55 ms per loop
In [3]: %timeit [0] + [1]*1000000
100 loops, best of 3: 8.04 ms per loop
As you ...
How can I force a long string without any blank to be wrapped?
...
for block elements:
<textarea style="width:100px; word-wrap:break-word;">
ACTGATCGAGCTGAAGCGCAGTGCGATGCTTCGATGATGCTGACGATGCTACGATGCGAGCATCTACGATCAGTC
</textarea>
for inline elements:
<span style="width:100px; word-wrap:break-word; display:i...
CSS background opacity with rgba not working in IE 8
... file, much like the way rgba works.
background: url(rgba.php?r=255&g=100&b=0&a=50) repeat;
background: rgba(255,100,0,0.5);
The script can be downloaded here: http://lea.verou.me/wp-content/uploads/2009/02/rgba.zip
I know it may not be the perfect solution for everybody, but it's wo...
Get person's age in Ruby
...
(Date.today.strftime('%Y%m%d').to_i - dob.strftime('%Y%m%d').to_i) / 10000
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