JS chess board. Useful for two dimensional loops

js_chess

// set your board size
var size = "64";
// initialize empty string
var string = "";
// loop the sucker
for (var i = 0; i < size; i++) {
  for (var j = 0; j < size; j++) {
    if ((i + j) % 2 == 0) { 
    	string += " ";
    } else {
    	string += "#";
    }
  }
  string += "\n";
}
// print out your chess board
console.log(string);