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How to get the nth element of a python list or a default if not available
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Explain the “setUp” and “tearDown” Python methods used in test cases
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answered Jul 28 '11 at 6:08
Artsiom RudzenkaArtsiom Rudzenka
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SQLAlchemy: What's the difference between flush() and commit()?
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answered Nov 17 '10 at 6:25
snapshoesnapshoe
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What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
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I think http://hasno.info/ruby-gotchas-and-caveats has a decent explanation of the difference:
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Assign output to variable in Bash
...erring to the variable.
#!/bin/bash
IP=$(curl automation.whatismyip.com/n09230945.asp)
echo "$IP"
sed "s/IP/$IP/" nsupdate.txt | nsupdate
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windows batch SET inside IF not working
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edited May 29 '18 at 10:08
JRA_TLL
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answered Feb 1 '12 at 20:12...
Create an empty data.frame
... stringsAsFactors=FALSE)
str(df)
> str(df)
'data.frame': 0 obs. of 5 variables:
$ Doubles : num
$ Ints : int
$ Factors : Factor w/ 0 levels:
$ Logicals : logi
$ Characters: chr
N.B. :
Initializing a data.frame with an empty column of the wrong type does not ...
Scala underscore - ERROR: missing parameter type for expanded function
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answered Oct 2 '11 at 15:09
retronymretronym
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Catch an exception thrown by an async void method
...od synchronously.
This explanation http://www.interact-sw.co.uk/iangblog/2010/11/01/csharp5-async-exceptions is pretty good - it discusses the steps the compiler takes to achieve this magic.
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PHP: Move associative array element to beginning of array
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answered Jun 30 '12 at 17:55
Mark EirichMark Eirich
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