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Difference between private, public, and protected inheritance
...like to describe member's accessors first in my own words. If you already know this, skip to the heading "next:".
There are three accessors that I'm aware of: public, protected and private.
Let:
class Base {
public:
int publicMember;
protected:
int protectedMember;
pr...
List of lists changes reflected across sublists unexpectedly
...than a matrix = [row] * 2 where both rows are exactly the same object, and now changes to one row matrix[0][0] = y suddenly reflect in the other one (matrix[0][0] is matrix[1][0]) == True
– nadrimajstor
Jul 2 '17 at 15:44
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Sending HTTP POST Request In Java
...ter trying for a while to get my hands on PostMethod it seems its actually now called HttpPost as per stackoverflow.com/a/9242394/1338936 - just for anyone finding this answer like I did :)
– Martin Lyne
Oct 28 '12 at 20:43
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How should I organize Python source code? [closed]
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Unfortunately the article is a dead link now :-(. The latest archived version is here: web.archive.org/web/20190714164001/http://…
– Igor Brejc
Apr 1 at 4:10
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Is there an exponent operator in C#?
... @Justas I just testing that on .NET Core 2.1 and Math.Pow is now faster than the suggested alternative implementation.
– bytedev
Dec 19 '18 at 11:19
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What is a non-capturing group in regular expressions?
...tp://stackoverflow.com/
https://stackoverflow.com/questions/tagged/regex
Now, if I apply the regex below over it...
(https?|ftp)://([^/\r\n]+)(/[^\r\n]*)?
... I would get the following result:
Match "http://stackoverflow.com/"
Group 1: "http"
Group 2: "stackoverflow.com"
Group 3...
How to 'bulk update' with Django?
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Update:
Django 2.2 version now has a bulk_update.
Old answer:
Refer to the following django documentation section
Updating multiple objects at once
In short you should be able to use:
ModelClass.objects.filter(name='bar').update(name="foo")
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When do we need curly braces around shell variables?
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{} is known as brace expansion. ${} is known as variable expansion. They do different things. I'd upvote you except for the no expansion bit.
– Spencer Rathbun
Jan 5 '12 at 21:52
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Why do you have to call .items() when iterating over a dictionary in Python?
...hen would you ever write a condition like this?
if (key, value) in dict:
Now it's not necessary that the in operator and for ... in operate over the same items. Implementation-wise they are different operations (__contains__ vs. __iter__). But that little inconsistency would be somewhat confusing ...
Calling method using JavaScript prototype
...he prototype. Your response forces me to create a factory and i'd like to know if there's any way to avoid that.
– R01010010
Dec 24 '14 at 3:09
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