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What's the point of having pointers in Go?
I know that pointers in Go allow mutation of a function's arguments, but wouldn't it have been simpler if they adopted just references (with appropriate const or mutable qualifiers). Now we have pointers and for some built-in types like maps and channels implicit pass by reference.
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How to use git bisect?
...ment history:
... --- 0 --- 1 --- 2 --- 3 --- 4* --- 5 --- current
You know that your program is not working properly at the current revision, and that it was working at the revision 0. So the regression was likely introduced in one of the commits 1, 2, 3, 4, 5, current.
You could try to check o...
dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
... 0
# Turn group2 into a factor
iris$group2 = factor(iris$group2)
# Now all possible combinations of Species and group2 are included in the output,
# whether present in the data or not
iris %>% group_by(Species, group2, .drop=FALSE) %>% tally
#> Species group2 n
#> ...
What is the explicit promise construction antipattern and how do I avoid it?
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The deferred antipattern (now explicit-construction anti-pattern) coined by Esailija is a common anti-pattern people who are new to promises make, I've made it myself when I first used promises. The problem with the above code is that is fails to util...
How do you detect Credit card type based on number?
...to detect the type of credit card based purely on its number. Does anyone know of a definitive, reliable way to find this?
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How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting
...atforms, do not include the weights even if it provides better results.
Now, if you can use scipy, you could use scipy.optimize.curve_fit to fit any model without transformations.
For y = A + B log x the result is the same as the transformation method:
>>> x = numpy.array([1, 7, 20, 50...
Why does the arrow (->) operator in C exist?
...o an int value positioned at byte-offset 2 in the continuous memory block known as c, even though type struct T had no field named b. The compiler would not care about the actual type of c at all. All it cared about is that c was an lvalue: some sort of writable memory block.
Now note that if you ...
rsync: difference between --size-only and --ignore-times
...a big cp -r A B yesterday, but you forgot to preserve the time stamps, and now you want to do the operation in reverse rsync B A. All those files you cp'ed have yesterday's time stamp, even though they weren't really modified yesterday, and rsync will by default end up copying all those files, and u...
Java: Class.this
...sing classes (JLS 8.1), so a.this in your example is not defined. I don't know if this constraint is true for bytecode. Maybe not.
– aioobe
Apr 29 '15 at 6:33
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Replace Fragment inside a ViewPager
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This only works for me if I call commitNow() instead of commit() when removing the fragment. Not sure why my use case is different, but hopefully this will save someone some time.
– Ian Lovejoy
Nov 21 '16 at 18:00
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