IvanOnTech Academy Smart Contract Programming Elegant JavaScript Chapter 2, Exercise 3

chessboard.js

function chessboard() {
    var rankstr = undefined;
    for (var row = 1; row <= 8; row ++) {
        rankstr = '';
        for (var col = 1; col <= 8; col ++){
            if ((row + col) % 2 == 0) {
                rankstr += '.';
            } else {
                rankstr += '#';
            } // switch colors
        } // traverse cols
        console.log(rankstr)
    } // traverse rows
    return 'done.'
} // chessboard()