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Keep-alive header clarification
... typical keep-alive response looks like this:
Keep-Alive: timeout=15, max=100
See Hypertext Transfer Protocol (HTTP) Keep-Alive Header for example (a draft for HTTP/2 where the keep-alive header is explained in greater detail than both 2616 and 2086):
A host sets the value of the timeout parame...
text-overflow: ellipsis not working
...2px blue;
white-space: nowrap;
text-overflow: ellipsis;
width: 100px;
display: block;
overflow: hidden
}
body {
overflow: hidden;
}
span {
border: solid 2px blue;
white-space: nowrap;
text-overflow: ellipsis;
width: 100px;
display: block;
overflo...
Javascript/jQuery: Set Values (Selection) in a multiple Select
...= true;
});
<select name='strings' id="strings" multiple style="width:100px;">
<option value="Test">Test</option>
<option value="Prof">Prof</option>
<option value="Live">Live</option>
<option value="Off">Off</option>
&l...
Principal component analysis in Python
...nalysis
Usage:
p = PCA( A, fraction=0.90 )
In:
A: an array of e.g. 1000 observations x 20 variables, 1000 rows x 20 columns
fraction: use principal components that account for e.g.
90 % of the total variance
Out:
p.U, p.d, p.Vt: from numpy.linalg.svd, A = U . d . Vt
p.di...
Understanding generators in Python
... x = x + 1
if x % 3 == 0:
yield x
for a in mygen(100):
print a
There is a loop in the generator that runs from 0 to n, and if the loop variable is a multiple of 3, it yields the variable.
During each iteration of the for loop the generator is executed. If it is the f...
How do I install Python OpenCV through Conda?
...deo can be opened, I wanted to confirm that I could extract a frame (frame 100) as an array. In openCV 2.4.9, the command for this was cap.set(cv2.cv.CV_CAP_PROP_POS_FRAMES, 100). In openCV 3.2.0, the equivalent command has changed to cap.set(cv2.CAP_PROP_POS_FRAMES, 100)
– oll...
Example images for code and mark-up Q&As [closed]
...d-gif
Solid BG
Animated dashed border as seen in this answer.
Details: 100x30 px with filled BG (no transparency)
Zooming stars as seen in this answer, originally developed as a 'screen-shot' of a screensaver.
Details: 160x120 px with filled BG (no transparency)
Animated Water as ...
Truncate a string straight JavaScript
...wered Dec 5 '18 at 17:36
mandrei100mandrei100
13111 silver badge44 bronze badges
...
C++ lambda with captures as a function pointer
...SBKerrek SB
415k7676 gold badges781781 silver badges10021002 bronze badges
3
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How to scale a UIImageView proportionally?
...e. The following code is not tested.
CGSize kMaxImageViewSize = {.width = 100, .height = 100};
CGSize imageSize = image.size;
CGFloat aspectRatio = imageSize.width / imageSize.height;
CGRect frame = imageView.frame;
if (kMaxImageViewSize.width / aspectRatio <= kMaxImageViewSize.height)
{
fr...