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Find when a file was deleted in Git
...e file.
Some explanation:
The --full-history flag here is important. Without it, Git performs "history simplification" when you ask it for the log of a file. The docs are light on details about exactly how this works and I lack the grit and courage required to try to figure it out from the source ...
How to reuse an ostringstream?
I'd like to clear out and reuse an ostringstream (and the underlying buffer) so that my app doesn't have to do as many allocations. How do I reset the object to its initial state?
...
What is :: (double colon) in Python when subscripting sequences?
...*0=0, it returns also the item on position 0. For instance: range(10)[::3] outputs [0, 3, 6, 9]
– Ricky Robinson
Sep 19 '14 at 8:56
1
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GOTO still considered harmful? [closed]
...ve at a particular "location" in the code, the less confident one can be about what the state of the system is at that point. (See below.)
Structured programming IMHO is less about "avoiding GOTOs" and more about making the structure of the code match the structure of the data. For example, a repeat...
Re-enabling window.alert in Chrome
... Note that you must close all the tabs of the same domain where you opted out of that alert option.
– Miguel
May 4 '17 at 10:36
1
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How can I sharpen an image in OpenCV?
...
One general procedure is laid out in the Wikipedia article on unsharp masking:
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 sha...
Return multiple values in JavaScript?
...h property value shorthand to name the return values in an object and pick out the ones you want:
let {baz, foo} = (function(){ return {foo: 3, bar: 500, baz: 40} })();
baz; // 40
foo; // 3
And by the way, don't be fooled by the fact that ECMAScript allows you to return 1, 2, .... What really happe...
Multiprocessing vs Threading Python [duplicate]
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how about IPC performance of multiprocessing? FOr a program which requires frequent share of objects among processes (e.g., through multiprocessing.Queue), what's the performance comparison to the in-process queue?
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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
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Let's get one thing out of the way first. The explanation that yield from g is equivalent to for v in g: yield v does not even begin to do justice to what yield from is all about. Because, let's face it, if all yield from does is expand the for ...
How can I print the contents of a hash in Perl?
...ash = ('abc' => 123, 'def' => [4,5,6]);
print Dumper(\%hash);
will output
$VAR1 = {
'def' => [
4,
5,
6
],
'abc' => 123
};
...