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A gentle tutorial to Emacs/Swank/Paredit for Clojure
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Dustin Getz
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answered Feb 18 '10 at 1:38
Michał MarczykMichał Marczyk
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Benefits of header-only libraries
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There are situations when a header-only library is the only option, for example when dealing wit...
What's the easiest way to escape HTML in Python?
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177
cgi.escape is fine. It escapes:
< to &lt;
> to &gt;
& to &amp;
That i...
Colors with unix command “watch”?
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edited May 23 '17 at 12:25
Community♦
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answered Sep 25 '10 at 14:37
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Is there a portable way to print a message from the C preprocessor?
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Find first element by predicate
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741
No, filter does not scan the whole stream. It's an intermediate operation, which returns a laz...
Under what circumstances is an SqlConnection automatically enlisted in an ambient TransactionScope T
...urs only when a connection is opened inside an active transaction scope.
Q7. Yes. An existing connection can be explicitly enlisted in the current transaction scope by calling EnlistTransaction( Transaction.Current ). You can also enlist a connection on a separate thread in the transaction by usi...
Python str vs unicode types
Working with Python 2.7, I'm wondering what real advantage there is in using the type unicode instead of str , as both of them seem to be able to hold Unicode strings. Is there any special reason apart from being able to set Unicode codes in unicode strings using the escape char \ ?:
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Extracting specific columns from a data frame
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177
Using the dplyr package, if your data.frame is called df1:
library(dplyr)
df1 %>%
select...