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Django optional url parameters
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There are several approaches.
One is to use a non-capturing group in the regex: (?:/(?P<title>[a-zA-Z]+)/)?
Making a Regex Django URL Token Optional
Another, easier to follow way is to have multiple rules that matches your needs, all pointing to...
What's your most controversial programming opinion?
...gs that don't warrant them. Just because something is new, or because someone respected has an opinion, doesn't mean it fits all :)
EDIT:
Just to clarify - I don't think people should ignore best practices, valued opinions etc. Just that people shouldn't just blindly jump on something without thin...
Code Wrap IntelliJ?
...; Virtual Space.
It doesn't have a shortcut by default, but you can assign one in the keymap.
AndroidStudio >= 1.4.1: the options are under File > Settings > Editor > General - under the Soft Wraps sub-group.
You can also right click the gutter (the vertical bar where line number is sh...
What requirement was the tuple designed to solve?
...gether a set of otherwise unrelated values without creating a type in only one way:
void M(int foo, string bar, double blah)
Logically this is exactly the same as a method M that takes one argument which is a 3-tuple of int, string, double. But I hope you would not actually make:
class MArgumen...
Solving “Who owns the Zebra” programmatically?
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One poster already mentioned that Prolog is a potential solution. This is true, and it's the solution I would use. In more general terms, this is a perfect problem for an automated inference system. Prolog is a logic progr...
How can I clear or empty a StringBuilder? [duplicate]
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Two ways that work:
Use stringBuilderObj.setLength(0).
Allocate a new one with new StringBuilder() instead of clearing the buffer.
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How to prevent the activity from loading twice on pressing the button
...hread (i.e. UI Thread or Simply use async class). Once your processing is done hide that dialog. It is the best solution in my knowledge and I have used it several times...:)
– Awais Tariq
Nov 10 '11 at 12:51
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Get current AUTO_INCREMENT value for any table
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It's not the best idea to add one to it and expect, it will be the ID of next row. In the mean time another transaction could insert a new row and you would use the wrong ID right?
– agim
Apr 4 '13 at 21:11
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How to determine whether a given Linux is 32 bit or 64 bit?
...various values: see "What do the flags in /proc/cpuinfo mean?"
Among them, one is named lm: Long Mode (x86-64: amd64, also known as Intel 64, i.e. 64-bit capable)
lm ==> 64-bit processor
Or using lshw (as mentioned below by Rolf of Saxony), without sudo (just for grepping the cpu width):
lshw...
Use 'class' or 'typename' for template parameters? [duplicate]
When defining a function template or class template in C++, one can write this:
10 Answers
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