for (let indexInRow = 0; indexInRow < rows[i].length; indexInRow++) {
const character = rows[i][indexInRow];
const num = parseInt(character);
+ // If num is a number, just shift j:
if (!isNaN(num)) j += num;
- //just shift j
- //something at position i,j
+ // Else: something at position i,j
else board[i][j++] = V.fen2board(character);
}
}