Thursday, April 26, 2018
Hi,
-- I found this code for sorting an array :
p ["AB_1020", "AB_950", "AB_50", "1000", "570"].partition{|x| x.to_i.zero? }
.flat_map{|x| x.sort_by {|x|x[/d+/]}.reverse}
ouptut
#⇒ ["AB_50", "AB_950", "AB_1020", "570", "1000"]
I know that .partition{|x| x.to_i.zero? } will create an array of arrays :
[["AB_1020", "AB_950", "AB_50"], ["1000", "570"]]
But this part .flat_map{|x| x.sort_by {|x|x[/d+/]}.reverse}
I could understand it.
Thanks.
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