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How to select only the first rows for each unique value of a column
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Send POST Request with Data Specified in File via Curl
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curl json post request via terminal to a rails app
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Jared Beck
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answered Apr 14 '11 at 5:22
BobBob
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Breaking up long strings on multiple lines in Ruby without stripping newlines
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Define all functions in one .R file, call them from another .R file. How, if possible?
...s will work:
> source("abc.R")
> source("xyz.R")
> fooXYZ(3)
[1] 5
>
Even if there are cyclical dependencies, this will work.
E.g. If abc.R is this:
fooABC <- function(x) {
k <- barXYZ(x)+1
return(k)
}
barABC <- function(x){
k <- x+30
return(k)
}
and...
BigDecimal equals() versus compareTo()
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edited May 28 at 12:56
answered Jul 22 '11 at 7:59
Jo...
How to change value of process.env.PORT in node.js?
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285
For just one run (from the unix shell prompt):
$ PORT=1234 node app.js
More permanently:
$ e...
Rails Migration: Remove constraint
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answered Apr 15 '11 at 20:42
Paul SturgessPaul Sturgess
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Does Qt support virtual pure slots?
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edited Mar 25 '18 at 12:41
llllllllll
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Base64 Decoding in iOS 7+
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Cœur
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answered Sep 30 '13 at 7:09
Gabriele Petronel...