Caesars Cipher -Solved

JavaScript
1

Can we solve the same in another way?

2

Try it and find out! Get used to exploring ideas in code rather than being told what you can and cannot do.

1 Like
3 
function rot13(str){
     wordA = 'A'.charCodeAt(0);
     wordN = 'N'.charCodeAt(0);
     wordZ = 'Z'.charCodeAt(0);
freshArr = [];
 
for (var i = 0;i<str.length;i++) {
    var word = str.charCodeAt(i);
    if(word >=wordN){
     freshArr.push(String.fromCharCode(word-13))
    }
    else{
        freshArr.push(String.fromCharCode(word+13));
    }
}
return freshArr.join("");
    }
    console.log(rot13('SERR PBQR'));
    ```

Iā€™m almost done with this but my O/P has a ā€œ-ā€ in between.

4 
function rot13(str) 
{
  let deciphered =[];
  
  for (let i=0; i < str.length; i++)
  {
    let unicode = str[i].charCodeAt(0);
    
    if (unicode >= 65 && unicode <= 90)
    {
      unicode + 13 <= 90 ? unicode += 13: unicode = 65 + ((unicode + 13) % 59);  
    }
    
    deciphered.push(String.fromCharCode(unicode));
  }  


  return deciphered.join("").toUpperCase();
}