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Java SafeVarargs annotation, does a standard or best practice exist?
...nother method that is already so annotated (for example: I frequently find myself writing vararg methods that exist to convert their argument to a list using Arrays.asList(...) and pass it to another method; such a case can always be annotated with @SafeVarargs because Arrays.asList has the annotati...
Include intermediary (through model) in responses in Django Rest Framework
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I was facing this problem and my solution (using DRF 3.6) was to use SerializerMethodField on the object and explicitly query the Membership table like so:
class MembershipSerializer(serializers.ModelSerializer):
"""Used as a nested serializer by Mem...
Creating a textarea with auto-resize
... auto, then matching the scrollHeight in the same render cycle still blows my mind how it 'fixes' this issue though it should only be technically painting the second height.
– bit-less
Sep 29 '16 at 16:49
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Nodejs Event Loop
... architecture in order to write native modules.
What I am posting here is my understanding of node.js and this might be a bit off track as well.
Libev is the event loop which actually runs internally in node.js to perform simple event loop operations. It's written originally for *nix systems. Lib...
Efficient way to apply multiple filters to pandas DataFrame or Series
...lean is more efficient since it doesn't make a copy of the data. However, my scenario is a bit more tricky than your example. The input I receive is a dictionary defining what filters to apply. My example could do something like df[(ge(df['col1'], 1) & le(df['col1'], 1)]. The issue for me re...
How to know if user is logged in with passport.js?
...() with any middleware to check for authentication, as in "router.get('/', my_controller.index)", then passport is never consulted and req.user will always be undefined. This is frustrating because I want to allow any visitor to call an API, but tailor the content of the response depending on who i...
Check whether a path is valid in Python without creating a file at the path's target
...nomenclature, I'm a pedantic fan of prefixing tester names by is_. This is my character flaw. Nonetheless, duly noted: you can't please everybody, and sometimes you can't please anybody. ;)
– Cecil Curry
Dec 9 '15 at 3:34
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Why do Java webapps use .do extension? Where did it come from?
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To my knowledge, this convention has been spread by Struts1. The user guide puts it like this:
5.4.2 Configure the ActionServlet Mapping
Note: The material in this section is not specific to Struts. The
configuration...
What is reflection and why is it useful?
...ossible to use reflection without risking runtime exceptions. As hinted in my answer, a common use of reflection is for libraries or frameworks, which explicitly can't know the structure of the application at compile time, since they are compiled separate from the application. Any library that uses ...
Android Spanned, SpannedString, Spannable, SpannableString and CharSequence
...eString and not a normal one.. because I am facing a huge lag with setText(my_string) when my_string has smileys in it (like that of watsapp) as compared to normal string..(which has only plain text) kindly throw some light... somehow I believed that smilleys are nothing but text (unicode) only
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