code: function getSalt(inputSalt) {
      let salt = '';
  
      if (inputSalt) {
          // Remove $apr1$ token and extract salt.
          salt = inputSalt.split('$')[2];
      } else {
          while(salt.length < 8) { // Random 8 chars.
              let rchIndex = Math.floor((Math.random() * 64));
              salt += itoa64[rchIndex];
          }
      }
  
      return salt;
  }
docs: Returns salt.