Caesar's Cipher (Need Help)

1 
function rot13(str) { // LBH QVQ VG!
  
  str.split(" ");
  
  for(var i = 0; i < str.length; i++) {  
 
    str.charCodeAt(i);
    
  }
  return str; 
 
}

// Change the inputs below to test
rot13("SERR PBQR PNZC");

Trying to solve this one by turning the string into an array of letters and then converting them into their corresponding Unicode. Am I on the right track?

2

Yes, that’s a fine strategy, since you fundamentally want to treat characters as numbers.