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Can you supply arguments to the map(&:method) syntax in Ruby?
...ck) }
end
end
Which will enable you to do not only this:
a = [1,3,5,7,9]
a.map(&:+.with(2))
# => [3, 5, 7, 9, 11]
But also a lot of other cool stuff, like passing multiple parameters:
arr = ["abc", "babc", "great", "fruit"]
arr.map(&:center.with(20, '*'))
# => ["********abc***...
How can I create a Set of Sets in Python?
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answered May 9 '11 at 0:18
a3nma3nm
7,50155 gold badges2525 silver badges3737 bronze badges
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Quickest way to compare two generic lists for differences
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edited Sep 5 '19 at 9:55
answered Oct 9 '12 at 8:31
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Remote debugging a Java application
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edited Aug 9 '15 at 2:44
answered Jun 10 '09 at 12:47
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Extract a regular expression match
... adds a few that are missing:
library(stringr)
str_locate("aaa12xxx", "[0-9]+")
# start end
# [1,] 4 5
str_extract("aaa12xxx", "[0-9]+")
# [1] "12"
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How to check if hex color is “too black”?
...t blue
var luma = 0.2126 * r + 0.7152 * g + 0.0722 * b; // per ITU-R BT.709
if (luma < 40) {
// pick a different colour
}
EDIT
Since May 2014 tinycolor now has a getBrightness() function, albeit using the CCIR601 weighting factors instead of the ITU-R ones above.
EDIT
The resulting lum...
How to kill zombie process
...ram in the foreground (a daemon program), and then I killed it with kill -9 , but I get a zombie remaining and I m not able to kill it with kill -9 . How to kill a zombie process?
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Copying PostgreSQL database to another server
...nd one is from remote to local. More -> https://www.postgresql.org/docs/9.6/app-pgdump.html
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Is there a common Java utility to break a list into batches?
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answered Aug 19 '12 at 13:38
Tomasz NurkiewiczTomasz Nurkiewicz
301k6060 gold badges648648 silver badges639639 bronze badges
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