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How to define two fields “unique” as couple
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Does Swift support reflection?
...dds the introspection and dynamism found in modern languages like Ruby and Python, just like Objective-C, but without Objective-C's legacy syntax.
Reference data: Execution overhead for method invocations:
static : < 1.1ns
vtable : ~ 1.1ns
dynamic : ~4.9ns
(actual performance depends on ha...
what is .netrwhist?
...st_cnt =6
let g:netrw_dirhist_1='/Users/wolever/EnSi/repos/web/env/web/lib/python2.6/site-packages/django'
let g:netrw_dirhist_2='/private/tmp/b/.hg/attic'
let g:netrw_dirhist_3='/Users/wolever/code/sandbox/pydhcplib-0.6.2/pydhcplib'
let g:netrw_dirhist_4='/Users/wolever/EnSi/repos/common/env/common...
JavaScript for detecting browser language preference [duplicate]
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@msec I have posted the Python appengine script as requested. Note, if server side is available, this should be pretty simple in any language - this service really only needs to exist for those that don't have (or don't want to have) a server side c...
How do I get the user agent with Flask?
...calls to getting this information out of the application context.
https://pythonhosted.org/Flask-Track-Usage/
Usage gets stored in this format:
[
{
'url': str,
'user_agent': {
'browser': str,
'language': str,
'platform': ...
Why dict.get(key) instead of dict[key]?
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I will give a practical example in scraping web data using python, a lot of the times you will get keys with no values, in those cases you will get errors if you use dictionary['key'], whereas dictionary.get('key', 'return_otherwise') has no problems.
Similarly, I would use ''.join(...
Accessing member of base class
...ping...");
super.move(45);
}
}
var sam = new Snake("Sammy the Python");
var tom: Animal = new Horse("Tommy the Palomino");
sam.move();
tom.move(34);
You don't need to manually assign the name to a public variable. Using public name in the constructor definition does this for you.
Yo...
“unpacking” a tuple to call a matching function pointer
...ct file
#####################
SConstruct
#####################
#!/usr/bin/python
env = Environment(CXX="g++-4.7", CXXFLAGS="-Wall -Werror -g -O3 -std=c++11")
env.Program(target="johannes", source=["johannes.cc"])
On my machine, this gives
g++-4.7 -o johannes.o -c -Wall -Werror -g -O3 -std=c++11...
Why can't an anonymous method be assigned to var?
... your programming principles, but this makes sense to me and probably some Python coders.
I'm pretty novice at delegates... just wanted to share what I learned.
[1] This assumes that you aren't calling a method that requires a predefined Func as a parameter, in which case, you'll have to type th...
Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
...orked for me, except the one posted by @4lberto . I'm on pandas 0.23.4 and python 3.6
– goelakash
Aug 25 '18 at 13:22
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