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What's the u prefix in a Python string?
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That was a fun read! Thanks! Article is 17 years old and it's still accurate. Wow.
– Kerwin Sneijders
Feb 28 at 11:08
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Associative arrays in Shell scripts
...e ugliest of hacks.
For a verbose, detailed answer with example code see:
https://stackoverflow.com/questions/3467959
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Use of alloc init instead of new
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Very old question, but I've written some example just for fun — maybe you'll find it useful ;)
#import "InitAllocNewTest.h"
@implementation InitAllocNewTest
+(id)alloc{
NSLog(@"Allocating...");
return [super alloc];
}
-(id)init{
NSLog(@"Initializing...");
retur...
Better way of incrementing build number?
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I have used this glist. It works as expected.
https://gist.github.com/sekati/3172554
(all credit goes to the original author)
Scripts that I modified over time.
xcode-versionString-generator.sh,
xcode-build-number-generator.sh
As these gist are helping the dev commun...
How to copy a collection from one database to another in MongoDB
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You could do something like:
db.<collection_name>.find().forEach(function(d){ db.getSiblingDB('<new_database>')['<collection_name>'].insert(d); });
Please note that with this, the two databases would need to share the same mongod for this to work.
Besides this, you can do a...
PHP: How to remove all non printable characters in a string?
... = preg_replace( '/[^[:print:]]/', '',$string);
For reference see http://www.fileformat.info/info/charset/UTF-8/list.htm
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Are +0 and -0 the same?
... Actually, this behavior models limit calculation in math. For example function 1/x has a value infinity in 0, however, it is separated if we are approaching 0 from the positive of negative side; in the former, the result is +inf, in the latter, -inf.
– Agoston Horvath
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Suppress warning messages using mysql from within Terminal, but password written in bash script
... edited Aug 4 at 7:44
coding is fun
35677 silver badges1515 bronze badges
answered Apr 8 '14 at 9:34
David Goo...
rreplace - How to replace the last occurrence of an expression in a string?
... = s.rsplit(old, occurrence)
... return new.join(li)
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>>> s
'1232425'
>>> rreplace(s, '2', ' ', 2)
'123 4 5'
>>> rreplace(s, '2', ' ', 3)
'1 3 4 5'
>>> rreplace(s, '2', ' ', 4)
'1 3 4 5'
>>> rreplace(s, '2', ' ', 0)
'1232425'
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How to set the matplotlib figure default size in ipython notebook?
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123
I believe the following work in version 0.11 and above. To check the version:
$ ipython --ver...