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Is there a software-engineering methodology for functional programming? [closed]
...g and the 'natural' object-oriented view of the world. There is a detailed methodology that describes how to transform a domain model into a class model with several steps and a lot of (UML) artifacts like use-case-diagrams or class-diagrams. Many programmers have internalized this approach and have...
What are the advantages of NumPy over regular Python lists?
... object (4 for type pointer, 4 for reference count, 4 for value -- and the memory allocators rounds up to 16). A NumPy array is an array of uniform values -- single-precision numbers takes 4 bytes each, double-precision ones, 8 bytes. Less flexible, but you pay substantially for the flexibility of s...
Non-Singleton Services in AngularJS
AngularJS clearly states in its documentation that Services are Singletons:
8 Answers
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Difference between null and empty (“”) Java String
...
"" is an actual string, albeit an empty one.
null, however, means that the String variable points to nothing.
a==b returns false because "" and null do not occupy the same space in memory--in other words, their variables don't point to the same objects.
a.equals(b) returns false bec...
Google Maps: how to get country, state/province/region, city given a lat/long value?
... without duplicates (e.g. "USA" and "United States" and "United States of America" are the same country; I only want one instance of this country in my database).
...
Difference between ProcessBuilder and Runtime.exec()
...ommand from java code, but there's a difference I've noticed between Runtime.getRuntime().exec(...) and new ProcessBuilder(...).start() .
...
How do I add a submodule to a sub-directory?
...m:...> in the snipmate-snippets directory, I get the following error message:
5 Answers
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What is “lifting” in Scala?
Sometimes when I read articles in the Scala ecosystem I read the term "lifting" / "lifted". Unfortunately, it is not explained what that exactly means. I did some research, and it seems that lifting has something to do with functional values or something like that, but I was not able to find a text ...
Store pictures as files or in the database for a web app?
...is effectively what SQL is doing - storing a pointer to the file on disk somewhere. This is how it gets around the 8KB page limit.
– Zhaph - Ben Duguid
Feb 18 '09 at 16:55
9
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In Bash, how to add “Are you sure [Y/n]” to any command or alias?
... [y/N] " response
case "$response" in
[yY][eE][sS]|[yY])
do_something
;;
*)
do_something_else
;;
esac
Or, for Bash >= version 3.2:
read -r -p "Are you sure? [y/N] " response
if [[ "$response" =~ ^([yY][eE][sS]|[yY])$ ]]
then
do_something
else
do...