solution to easy compression of MAC and IPv4 adresses

ipac-maco.js

/*
ipac-maco.js
Sett Sarverott
2020
*/

function ipacCoding(ipAddress){
  //console.log(ipAddress);
  var cryptoip=[];
  ipAddress.split(".").forEach(function(data){
    cryptoip.push(
      parseInt(data)%16,
      Math.floor(parseInt(data)/16)
    );
  });
  //console.log(cryptoip);
  var output=""
  for(var i=0; i<8; i++){
    output+=interfaceCharCoding(
      cryptoip[i]
    );
  }
  return output;
}
function macoCoding(macAddress){
  var cryptomac=[];
  //console.log(macAddress.split(""))
  macAddress.split("").filter(
    function(data){
      return data!=":";
    }
  ).forEach(
    function(data){
      if(isNaN(data)){
        cryptomac.push(
          (10+data.toLowerCase().charCodeAt(0)-97)%4,
          Math.floor((10+data.toLowerCase().charCodeAt(0)-97)/4)
        );
      }else{
        cryptomac.push(
          parseInt(data)%4,
          Math.floor(parseInt(data)/4)
        );
      }
    }
  );
  var output=""
  for(var i=0; i<8; i++){
    output+=interfaceCharCoding(
      cryptomac[i*3]+cryptomac[i*3+1]*4+cryptomac[i*3+2]*16
    );
  }
  return output;
}
function interfaceCharCoding(data){
  if(data<0){
    throw "to_low";
  }
  if(data==0){
    return String.fromCharCode(46);
  }
  data--;
  if(data<10){
    return String.fromCharCode(48+data);
  }
  data-=10;
  if(data<26){
    return String.fromCharCode(65+data);
  }
  data-=26;
  if(data<26){
    return String.fromCharCode(97+data);
  }
  data-=26;
  if(data==0){
    return String.fromCharCode(95);
  }
  throw "to_high";
}

//console.log(macoCoding("01:23:45:67:89:ab"));
//console.log(ipacCoding("127.0.0.1"));