use dns.resolvenaptr in javascript

The dns module in Node.js provides support for DNS (Domain Name System) resolution functions. To use the dns.resolvenaptr() function, you need to first import the dns module using the require() function.

index.tsx
const dns = require('dns');
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The dns.resolvenaptr() function is used to look up the NAPTR (Naming Authority Pointer) record for a given domain name. The function takes two arguments:

1. hostname (string): the domain name to look up.

2. callback (function): the callback function to be called with the results of the DNS query.

Here's an example of how to use dns.resolvenaptr() in JavaScript:

index.tsx
const dns = require('dns');

const hostname = 'example.com';

dns.resolvenaptr(hostname, (err, addresses) => {
  if (err) throw err;

  console.log(`NAPTR records for ${hostname}: ${JSON.stringify(addresses)}`);
});
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In this example, we're looking up the NAPTR records for example.com. The results of the query are passed to the callback function as the addresses argument. We're simply logging the results to the console here, but in practice you would likely do something else with them.