Unique characters in each string: Difference between revisions

=={{header|Ruby}}==

<lang ruby>arr = ["1a3c52debeffd", "2b6178c97a938stf", "3ycxdb1fgxa2yz"]

uniqs_in_str = arr.map{|str| str.chars.tally.filter_map{|k, v| k if v == 1} }

puts uniqs_in_str.inject(&:intersection).sort.join(" ")

</lang>

{{out}}

<pre>1 2 3 a b c</pre>