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How to split a delimited string into an array in awk?
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285
Have you tried:
echo "12|23|11" | awk '{split($0,a,"|"); print a[3],a[2],a[1]}'
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What is the difference between dict.items() and dict.iteritems() in Python2?
...d is also gone, since items() in Python 3 works like viewitems() in Python 2.7.
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Can someone give an example of cosine similarity, in a very simple, graphical way?
...unt the number of times each of these words appears in each text:
me 2 2
Jane 0 1
Julie 1 1
Linda 1 0
likes 0 1
loves 2 1
more 1 1
than 1 1
We are not interested in the words themselves though. We are interested only in
those two vertical vectors of counts. F...
How do you get centered content using Twitter Bootstrap?
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Get decimal portion of a number with JavaScript
I have float numbers like 3.2 and 1.6 .
22 Answers
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Extracting the last n characters from a ruby string
... a one liner, you can put a number greater than the size of the string:
"123".split(//).last(5).to_s
For ruby 1.9+
"123".split(//).last(5).join("").to_s
For ruby 2.0+, join returns a string
"123".split(//).last(5).join
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Javascript equivalent of Python's zip function
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2016 update:
Here's a snazzier Ecmascript 6 version:
zip= rows=>rows[0].map((_,c)=>rows.map(row=>row[c]))
Illustration equiv. to Python{zip(*args)}:
> zip([['row0col0', 'row0col1', 'row0col2'],
['row1c...
Best way to merge two maps and sum the values of same key?
...> import Scalaz._
import Scalaz._
scala> val map1 = Map(1 -> 9 , 2 -> 20)
map1: scala.collection.immutable.Map[Int,Int] = Map(1 -> 9, 2 -> 20)
scala> val map2 = Map(1 -> 100, 3 -> 300)
map2: scala.collection.immutable.Map[Int,Int] = Map(1 -> 100, 3 -> 300)
scala&g...