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Two way sync with rsync
I have a folder a/ and a remote folder A/.
I now run something like this on a Makefile:
10 Answers
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Behaviour of increment and decrement operators in Python
...++ and -- operators were left out for consistency and simplicity. I don't know the exact argument Guido van Rossum gave for the decision, but I can imagine a few arguments:
Simpler parsing. Technically, parsing ++count is ambiguous, as it could be +, +, count (two unary + operators) just as easily...
How do I get my C# program to sleep for 50 msec?
...lisecondsToWait)
{
break;
}
}
We could also use DateTime.Now or other means of time measurement, but Stopwatch is much faster (and this would really become visible in tight loop).
for 3. - Combination:
Stopwatch stopwatch = Stopwatch.StartNew();
while (true)
{
//some other pr...
How to read a file in reverse order?
...ek() is never encoding-aware, read() is if you open the file in text mode. Now if have 'aöaö' * 1000000, your blocks will not be aligned correctly.
– norok2
Nov 14 '18 at 13:25
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Evaluating string “3*(4+2)” yield int 18 [duplicate]
...
.NET Core now supports DataTable: blogs.msdn.microsoft.com/devfish/2017/05/15/…
– Piedone
Jun 3 '17 at 15:20
9
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How can I generate a unique ID in Python? [duplicate]
...uction code (and about to roll out to more uses of it in a newer release). Now I'm scared!
– Matthew Schinckel
Nov 6 '10 at 7:38
2
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How to unmount a busy device
... -l / --lazy won't corrupt open files, but on Linux it seems you can't know when the device is actually unmounted and can be removed
– Tom Hale
Aug 12 '17 at 6:14
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How to take a screenshot programmatically on iOS
... Core Graphics contexts
Apple Docs - UIGraphicsImageRenderer
So you can now do something like this:
let renderer = UIGraphicsImageRenderer(size: someView.bounds.size)
let image = renderer.image(actions: { context in
someView.drawHierarchy(in: someView.bounds, afterScreenUpdates: true)
})
...
Reading an Excel file in python using pandas
...et1.irow(0).real
Edit:
The methods icol(i) and irow(i) are deprecated now. You can use sheet1.iloc[:,i] to get the i-th col and sheet1.iloc[i,:] to get the i-th row.
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improve this answer...
String concatenation: concat() vs “+” operator
...ring cat(String a, String b) {
a += b;
return a;
}
}
Now disassemble with javap -c (included in the Sun JDK). You should see a listing including:
java.lang.String cat(java.lang.String, java.lang.String);
Code:
0: new #2; //class java/lang/StringBuilder
3: dup
...