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Uint8Array to string in Javascript
...en I feed it 300+k chars, or RangeError for Chrome 39. Firefox 33 is ok. 100+k runs ok with all three.
– Sheepy
Nov 29 '14 at 4:30
...
How can I fill a div with an image while keeping it proportional?
...
overflow: hidden
}
.fill img {
flex-shrink: 0;
min-width: 100%;
min-height: 100%
}
<div class="fill">
<img src="https://lorempizza.com/320/240" alt="" />
</div>
JSFiddle here
I tested this successfully in IE9, Chrome 31, and Opera 18. But no ot...
Background color of text in SVG
...
You could use a filter to generate the background.
<svg width="100%" height="100%">
<defs>
<filter x="0" y="0" width="1" height="1" id="solid">
<feFlood flood-color="yellow"/>
<feComposite in="SourceGraphic" operator="xor" />
</fil...
What is the behavior of integer division?
... positive values they are the same
int integerDivisionResultPositive= 125/100;//= 1
double flooringResultPositive= floor(125.0/100.0);//=1.0
For negative value this is different
int integerDivisionResultNegative= -125/100;//=-1
double flooringResultNegative= floor(-125.0/100.0);//=-2.0
...
How to generate random SHA1 hash to use as ID in node.js?
... in a given minute (a generous operation execution time), you will have 60*1000 or 60000 uniques.
The uniqueness of Math.random
Now, when using Math.random, because of the way JavaScript represents 64-bit floating point numbers, you'll get a number with length anywhere between 13 and 24 characte...
Iterating over a numpy array
...performance. It is a bit slower than a list comprehension.
X = np.zeros((100, 100, 100))
%timeit list([((i,j,k), X[i,j,k]) for i in range(X.shape[0]) for j in range(X.shape[1]) for k in range(X.shape[2])])
1 loop, best of 3: 376 ms per loop
%timeit list(np.ndenumerate(X))
1 loop, best of 3: 570 ...
window+nginx+php-cgi的php-cgi线程/子进程问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...会是a.php+b.php,而不是并行,是串行时间了.
如a.php
sleep(100);echo 1;
b.php
echo 2;
先执行a.php,100秒后输出1.在执行a.php的同一时候,执行b.php,2却出如今100秒以后.如果...却不是一执行就立马出现,由于上面的配置受影响导致解析是串行...
How does C compute sin() and other math functions?
... double pow = x;
while (fabs(acc) > .00000001 && i < 100){
fact *= ((2*i)*(2*i+1));
pow *= -1 * x*x;
acc = pow / fact;
cur += acc;
i++;
}
return cur;
}
...
How to get an MD5 checksum in PowerShell
...Hashing File" `
-Status $file -percentComplete ($total/$fd.length * 100)
}
# Finalize the last read
$md5.TransformFinalBlock($buf, 0, $read_len)
$hash = $md5.Hash
# Convert hash bytes to a hexadecimal formatted string
$hash | foreach { $hash_txt += $_.ToString("x2") }
Write-Host $hash_txt
...
Possible to make labels appear when hovering over a point in matplotlib?
...
cmap = plt.cm.RdYlGn
fig,ax = plt.subplots()
sc = plt.scatter(x,y,c=c, s=100, cmap=cmap, norm=norm)
annot = ax.annotate("", xy=(0,0), xytext=(20,20),textcoords="offset points",
bbox=dict(boxstyle="round", fc="w"),
arrowprops=dict(arrowstyle="->"))
annot....