method
collect_concat
v1_9_3_125 -
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- Class:
Enumerable
collect_concat()public
Returns a new array with the concatenated results of running block once for every element in enum.
If no block is given, an enumerator is returned instead.
[[1,2],[3,4]].flat_map {|i| i } #=> [1, 2, 3, 4]