Ruby Array parsing (REGEX) -


i have array in ruby has values below:

arr  value 1 : tb-5-atf, ac-23  value 2 : tb-5-atf, ac-5498 value 3 : tb-5-atf, ac-236

i want extract numbers after last '-' i.e. 23, 5498, 236 out of this.

i think simple should have googled bit ruby strings. need 

arr[i].split("-").last.to_i

i tried on irb

1.9.3p194 :003 > "tb-5-atf, ac-23".split("-").last.to_i => 23

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