method
join
ruby latest stable - Class:
Array
join(p1 = v1)public
Returns a string created by converting each element of the array to a string, separated by the given separator. If the separator is nil, it uses current $,. If both the separator and $, are nil, it uses an empty string.
[ "a", "b", "c" ].join #=> "abc" [ "a", "b", "c" ].join("-") #=> "a-b-c"
For nested arrays, join is applied recursively:
[ "a", [1, 2, [:x, :y]], "b" ].join("-") #=> "a-1-2-x-y-b"