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How to create a GUID/UUID in Python
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Copied from : https://docs.python.org/2/library/uuid.html (Since the links posted were not active and they keep updating)
>>> import uuid
>>> # make a UUID based on the host ID and current time
>>> uuid....
How can I sharpen an image in OpenCV?
...ing:
You use a Gaussian smoothing filter and subtract the smoothed version from the original image (in a weighted way so the values of a constant area remain constant).
To get a sharpened version of frame into image: (both cv::Mat)
cv::GaussianBlur(frame, image, cv::Size(0, 0), 3);
cv::addWeighted(f...
How can I get Maven to stop attempting to check for updates for artifacts from a certain group from
...en't downloaded which is exactly that I wanted.
– wolfroma
Aug 24 '17 at 19:16
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Automatic exit from bash shell script on error [duplicate]
... the last, or if the command's return value is being inverted with
!
(from man bash)
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Python naming conventions for modules
...er naming convention of the other possibilities. It'll also make importing from modules more readable since you generally import classes and constants rather than variables.
– Ted Klein Bergman
Nov 8 '16 at 18:53
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Embedding SVG into ReactJS
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Thanks, starting from this I've managed to import an svg from file as a React component without any loader, I've just removed ``` xmlns:osb="openswatchbook.org/uri/2009/osb"``` from the svg tag, leaving only the xlmns. It's all about tag par...
When to use in vs ref vs out
... b are. If the call goes to a server in Hawaii, copying the initial values from here to Hawaii is a waste of bandwidth. A similar snippet using ref:
string a = String.Empty, b = String.Empty;
person.GetBothNames(ref a, ref b);
could confuse readers, because it looks like the initial values of a a...
How does Activity.finish() work in Android?
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Does it exits immediately or completes
the function from which it was called
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The method that called finish() will run to completion. The finish() operation will not even begin until you return control to Android.
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How can I create a two dimensional array in JavaScript?
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How to create an empty two dimensional array (one-line)
Array.from(Array(2), () => new Array(4))
2 and 4 being first and second dimensions respectively.
We are making use of Array.from, which can take an array-like param and an optional mapping for each of the elements.
Array....
List comprehension vs map
...ust to iterate. The same argument holds for filter and reduce and anything from the itertools module: if you already have a function handy, you could go ahead and do some functional programming. This gains readability in some situations, and loses it in others (e.g. novice programmers, multiple argu...