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val-mutable versus var-immutable in Scala
...x points to, but you won't be able to change to which object x points. The opposite holds if you use var x = new ImmutableFoo(). Picking up my initial advice: if you don't need to change to which object a reference points, use vals.
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What is more efficient? Using pow to square or just multiply it with itself?
... You cannot assume that generalized functions are slower. Sometimes the opposite is true because simpler code is easier for the compiler to optimize.
– cambunctious
Apr 21 at 20:18
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Is it better to use std::memcpy() or std::copy() in terms to performance?
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There is an opposite argument that can be made: when going through memcpy interface it loses the alignment information. Hence, memcpy has to do alignment checks at run-time to handle unaligned beginnings and ends. Those checks may be che...
could not resolve host github.com error while cloning remote repository in git
...n the proxy URL, see below)
Note the NO_PROXY, to allow to access internal site to your company
You also can register that in your git config:
git config --global http.proxy http://<login_internet>:<password_internet>@aproxy:aport
But if you have incorrect proxy Git settings, remove the...
What is the purpose of the “role” attribute in HTML?
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Please disclose any affiliations and do not use the site as a way to promote your site through posting. See How do I write a good answer?.
– user3956566
Aug 13 '19 at 9:21
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S3 - Access-Control-Allow-Origin Header
...*</AllowedHeader> for it to work (better to make a new rule for your site only when doing this)
– parliament
Feb 18 '15 at 4:38
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What is the performance cost of having a virtual method in a C++ class?
...or not making things virtual by default. In any case I was thinking of the opposite - a generic and well written implementation is replaced by something that has specific and non-compatible behavior.
– Andrew Grant
Mar 20 '09 at 20:32
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How do I increase the cell width of the Jupyter/ipython notebook in my browser?
...red. I use Miniconda but location is similar with others C:\Miniconda3\Lib\site-packages\notebook\static\style\style.min.css
With some screens these resolutions are different and more than 1. To be on the safe side I change all to 98% so if I disconnect from my external screens on my laptop I still...
What are the use cases for selecting CHAR over VARCHAR in SQL?
...sLearning pointed out that the Microsoft Transact-SQL docs seem to say the opposite. I would suggest that is an error or at least the docs are unclear.
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jQuery Tips and Tricks
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Every day I wade through pointless XML/XLS/XLST, sites written with far too many layers of abstraction, complex fail-over systems on sites that will never outgrow the humblest of servers... and still people complain about the difference between $(<string>) & $(<...