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What does .SD stand for in data.table in R
.SD looks useful but I do not really know what I am doing with it. What does it stand for? Why is there a preceding period (full stop). What is happening when I use it?
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How do I rename all files to lowercase?
I have for example TREE.wav, ONE.WAV. I want to rename it to tree.wav, one.wav. How do I rename all files to lowercase?
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With MySQL, how can I generate a column containing the record index in a table?
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– Daniel Vassallo
Feb 27 '12 at 23:05
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People should be aware that this row number is calculat...
Most concise way to convert a Set to a List
For example, I am currently doing this:
6 Answers
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Remove carriage return in Unix
What is the simplest way to remove all the carriage returns \r from a file in Unix?
20 Answers
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How to impose maxlength on textArea in HTML using JavaScript
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– Rakesh Juyal
Jul 14 '09 at 14:05
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I think I remember what the deal is: either FF or IE (I ...
Get final URL after curl is redirected
...ile.
– Steven Penny
Jun 15 '14 at 2:05
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Some websites also need a spoofed user agent with curl -...
Vim users, where do you rest your right hand? [closed]
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answered Jul 14 '11 at 19:05
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Difference between InvariantCulture and Ordinal string comparison
When comparing two strings in c# for equality, what is the difference between InvariantCulture and Ordinal comparison?
9 An...
How to empty a list?
...t mistake.
– aafulei
Sep 6 '19 at 2:05
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