Caesars Cipher

ROT13.js

function rot13(str) { // LBH QVQ VG!
  var output = "";
  for (var i = 0; i < str.length; i++) {
    console.log("We are in loop " + i);
    var ascii = str[i].charCodeAt();
    console.log("Ascii value: " + ascii);
    
    // Check if character is alphabetical or not
    if (ascii <= 90 && ascii >= 65) {
      console.log("Character is part of alphabet");
      
      // Convert character 13 characters over
      var move = ascii + 13;
      console.log("Moved char: " + move);
      
      // Loop through alphabet if beyond limits
      if (move > 90) {
        output += String.fromCharCode(move - 26);
      } else {
        output += String.fromCharCode(move);
      }
      console.log("New string: " + output);
    } else {
      // Return value if anything else by alphabetical
      output += str[i];
    }
    console.log("\n");
  }
  console.log("\n");
  return output;
}