enum.grep(pattern) â array
enum.grep(pattern) { |obj| block } â array
enum.grep(pattern) { |obj| block } â array
Instance Public methods
Returns an array of every element in enum for which Pattern
=== element. If the optional block is supplied, each
matching element is passed to it, and the block's result is stored in
the output array.
(1..100).grep 38..44 #=> [38, 39, 40, 41, 42, 43, 44]
c = IO.constants
c.grep(/SEEK/) #=> [:SEEK_SET, :SEEK_CUR, :SEEK_END]
res = c.grep(/SEEK/) { |v| IO.const_get(v) }
res #=> [0, 1, 2]
Please login to continue.