Callback and dns.reverse function

[Zakaria M]

Hi All and sorry for my english.

i have a function that return a dns name off an IP on console.log but my goal is to have it as variable (to push it on a page later).

My function :

function toto(ip){
    const dns = require('dns');
 
    dns.reverse(ip, function(err, domains) {
      dns.setServers(['10.1.5.4', '10.15.5.2']);
      if (domains) {
        console.log(JSON.stringify(domains)); 
      } else {
        callback(err.code);
      }
 
 
    });
 
};
 
toto('10.16.4.16');

On console i have :  ["sertest"]

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PS : can i have this  var tata=toto('10.16.4.16'); ?