Iterate through an array using each_with_index without a separate index variable

Vote count:

0

I am trying to figure out how I can refactor my code below so that I can iterate through the array without using the "index1" and "index2" variables to keep track of my progress.

  board.each do |cell|
    diag1 << cell[index1]
    diag2 << cell[index2]
    index1 += 1
    index2 -= 1
  end

I tried using .each_with_index (see below), but I'm not sure how to increment my values for "i".

  board.each_with_index do |cell, i|
    diag1 << cell[i += 1]
    diag2 << cell[i -= 1]
  end

The array "board" is an n*n array of a tic-tac-to game that is at least 3x3 in size or larger and the block of code is supposed to check to see if there is a diagonal match. Thanks in advance!

edited 1 min ago

Dave Newton

93.8k

asked 5 mins ago

ACIDSTEALTH

18

Iterate through an array using each_with_index without a separate index variable