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What is the overhead of creating a new HttpClient per call in a WebAPI client?
What should be the HttpClient lifetime of a WebAPI client?
Is it better to have one instance of the HttpClient for multiple calls?
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Why prefer two's complement over sign-and-magnitude for signed numbers?
I'm just curious if there's a reason why in order to represent -1 in binary, two's complement is used: flipping the bits and adding 1?
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Indenting #defines
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I don't know why it's not more common. There are certainly times when I like to indent preprocessor directives.
One thing that keeps getting in my way (and sometimes convinces me to stop trying) is that many or most editors/IDEs will throw the directive to column 1 at the slightest ...
Fast Bitmap Blur For Android SDK
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For radius larger than 1 sometimes you get ArrayIndexOutOfBoundsException. I will try to identify the problem.
– MikeL
Mar 9 '14 at 14:07
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How do I add tab completion to the Python shell?
... not working for new mac with "el captan". I need to source ~/.bashrc everytime to make it work before starting python interpreter. Any tips?
– hi15
Oct 4 '16 at 15:30
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When and why are database joins expensive?
...algorithm, but broadly speaking high-performance indexing has an execution time of k log n + c. The C term is a fixed overhead mostly made of setup time, and the shape of the curve means you don't get a payoff (compared to a linear search) until n is in the hundreds.
Sometimes denormalisation is ...
How to hide action bar before activity is created, and then show it again?
... Window Title showing.
ADDON:
If you show and hide the ActionBar multiple times maybe you have noticed that the first showing is not animated. From then on showing and hiding are animated. If you want to have animation on the first showing too you can use this:
protected void onCreate(Bundle saved...
CSS selector - element with a given child [duplicate]
...styled, rather than the span. Unfortunately, no modern browsers (as of the time of this posting) have implemented this as part of their CSS support. There is, however, support via a JavaScript library called Sel, if you want to go down the path of exploration further.
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What do the makefile symbols $@ and $< mean?
...pp, $< is evaluated to just lib1.cpp. A few years ago, I had spend some time figuring out what's happend in the result caused by this behaviour.
– Chan Kim
Jul 11 '18 at 5:48
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Returning a boolean from a Bash function
...d pipeline.
Whoa, wait. Pipeline? Let's turn to the bash manual one more time.
A pipeline is a sequence of one or more commands separated by one of the control operators ‘|’ or ‘|&’.
Yes. They said 1 command is a pipeline. Therefore, all 3 of those quotes are saying the same thin...