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How to understand nil vs. empty vs. blank in Ruby
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answered May 20 '09 at 16:14
Corban BrookCorban Brook
20.7k44 gold badges2525 silver badges3434 bronze badges
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How do I get the day of the week with Foundation?
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216
NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatte...
Is there a TRY CATCH command in Bash
...behavior using && or ||.
Using ||:
if command1 fails then command2 runs as follows
command1 || command2
Similarly, using &&, command2 will run if command1 is successful
The closest approximation of try/catch is as follows
{ # try
command1 &&
#save your output
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Python argparse: default value or specified value
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286
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('--example', nargs='?',...
Parsing huge logfiles in Node.js - read in line-by-line
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210
I searched for a solution to parse very large files (gbs) line by line using a stream. All the...
View a file in a different Git branch without changing branches
...fic revision in Git?
How to get just one file from another branch
UPDATE 2015-01-19:
Nowadays you can use relative paths with git show a1b35:./file.txt.
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Using Python 3 in virtualenv
Using virtualenv , I run my projects with the default version of Python (2.7). On one project, I need to use Python 3.4.
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Changing a specific column name in pandas DataFrame
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362
A one liner does exist:
In [27]: df=df.rename(columns = {'two':'new_name'})
In [28]: df
Out[28...
Python loop that also accesses previous and next values
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102
This should do the trick.
foo = somevalue
previous = next_ = None
l = len(objects)
for index, o...
Named string formatting in C#
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John SheehanJohn Sheehan
72.7k2727 gold badges153153 silver badges189189 bronze badges
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