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What is the difference between an interface and a class, and why I should use an interface when I ca
I am aware that this is a very basic question, but an interviewer asked me in a very trick way and I was helpless :(
16 Ans...
How do I get the full path of the current file's directory?
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Python 3
For the directory of the script being run:
import pathlib
pathlib.Path(__file__).parent.absolute()
For the current working directory:
import pathlib
pathlib.Path().absolute()
Python 2 and 3
For the directory of the script being run:
import os
os.path....
How to fully clean bin and obj folders within Visual Studio?
... see a "Clean" menu item. I assumed this would clean (remove) the obj and bin directory.
However, as far as I can see, it does nothing.
Is there another way?
(please don't tell me to go to Windows Explorer or the cmd.exe)
I'd like to remove the obj and bin folder so that I can easily zip the whole ...
Creating the Singleton design pattern in PHP5
How would one create a Singleton class using PHP5 classes?
21 Answers
21
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Why does PHP consider 0 to be equal to a string?
I have the following piece of code:
9 Answers
9
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In-place edits with sed on OS X
I'd like edit a file with sed on OS X. I'm using the following command:
6 Answers
6
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AWK: Access captured group from line pattern
...ced awk by perl a long time ago.
Apparently the AWK regular expression engine does not capture its groups.
you might consider using something like :
perl -n -e'/test(\d+)/ && print $1'
the -n flag causes perl to loop over every line like awk does.
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Django dynamic model fields
I'm working on a multi-tenanted application in which some users can define their own data fields (via the admin) to collect additional data in forms and report on the data. The latter bit makes JSONField not a great option, so instead I have the following solution:
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What does auto do in margin:0 auto?
What does auto do in margin:0 auto; ?
7 Answers
7
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Setting default permissions for newly created files and sub-directories under a directory in Linux?
I have a bunch of long-running scripts and applications that are storing output results in a directory shared amongst a few users. I would like a way to make sure that every file and directory created under this shared directory automatically had u=rwxg=rwxo=r permissions.
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