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XSLT getting last element
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edited Jul 18 at 1:36
iliketocode
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Using psql how do I list extensions installed in a database?
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388
In psql that would be
\dx
See the manual for details: http://www.postgresql.org/docs/current...
Accessing bash command line args $@ vs $*
...nn jackman
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How to get current date & time in MySQL?
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edited Jan 26 '18 at 9:35
Yuri
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How to get base url with jquery or javascript?
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182
This one will help you...
var getUrl = window.location;
var baseUrl = getUrl .protocol + "//" ...
What does collation mean?
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answered Dec 27 '10 at 12:48
paxdiablopaxdiablo
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How to get different colored lines for different plots in a single figure?
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vpz
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answered Jan 26 '11 at 14:11
Joe KingtonJoe Kington
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Assign multiple columns using := in data.table, by group
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This now works in v1.8.3 on R-Forge. Thanks for highlighting it!
x <- data.table(a = 1:3, b = 1:6)
f <- function(x) {list("hi", "hello")}
x[ , c("col1", "col2") := f(), by = a][]
# a b col1 col2
# 1: 1 1 hi hello
# 2: 2 2 hi hell...
Superscript in markdown (Github flavored)?
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So to write O(n^2) sensibly, I would just type O(n<sup>2</sup>), and it would appear as O(n<sup>2</sup>). Nice. Now ...
How do I set up DNS for an apex domain (no www) pointing to a Heroku app?
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edited Mar 4 at 8:13
Dave Powers
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