大约有 7,549 项符合查询结果(耗时:0.0227秒) [XML]
Should import statements always be at the top of a module?
...ing shows that would help (you did profile to see where best to improve performance, right??)
The best reasons I've seen to perform lazy imports are:
Optional library support. If your code has multiple paths that use different libraries, don't break if an optional library is not installed.
In t...
The $.param( ) inverse function in JavaScript / jQuery
Given the following form:
18 Answers
18
...
What's the difference between echo, print, and print_r in PHP?
...an array or an object). print_r prints a variable in a more human-readable form: strings are not quoted, type information is omitted, array sizes aren't given, etc.
var_dump is usually more useful than print_r when debugging, in my experience. It's particularly useful when you don't know exactly wh...
How to find all the subclasses of a class given its name?
...
The simplest solution in general form:
def get_subclasses(cls):
for subclass in cls.__subclasses__():
yield from get_subclasses(subclass)
yield subclass
And a classmethod in case you have a single class where you inherit from:
@classm...
Web deployment task build failed
...ilding via TFS. When I tried to manually import the website I got a more informative error: "not able to log on the user \WDeployConfigWriter".
Turns out that when you install web deploy it sets up two local accounts WDeployConfigWriter and WDeployAdmin. The passwords on these accounts are set to e...
Why isn't vector a STL container?
...
vector<bool> contains boolean values in compressed form using only one bit for value (and not 8 how bool[] arrays do). It is not possible to return a reference to a bit in c++, so there is a special helper type, "bit reference", which provides you a interface to some bit in m...
How to autosize a textarea using Prototype?
...n an internal sales application for the company I work for, and I've got a form that allows the user to change the delivery address.
...
Show a PDF files in users browser via PHP/Perl
... moniker “intellectual property”. This is just word hacking to make information hoarding seem like not only a legitimate business model, but even as worthwhile for the public to defend against innovation.
– Svante
Jul 1 '19 at 14:31
...
How can I check if character in a string is a letter? (Python)
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
...
Django Rest Framework File Upload
...parser_classes = (FileUploadParser,)
def put(self, request, filename, format=None):
file_obj = request.FILES['file']
# do some stuff with uploaded file
return Response(status=204)
share
...