Ruby each_with_index offset

Question

Can I define the offset of the index in the each_with_index loop iterator? My straight forward attempt failed:

some_array.each_with_index{|item, index = 1| s         


        

Answer 1

The following is succinct, using Ruby's Enumerator class.

[:foo, :bar, :baz].each.with_index(1) do |elem, i|
    puts "#{i}: #{elem}"
end

output

1: foo
2: bar
3: baz

Array#each returns an enumerator, and calling Enumerator#with_index returns another enumerator, to which a block is passed.