JSON string response find count of age > 50

regex-count-age-json-string.js

const https = require('https');

const callback = response => {
  let str = '';

  response.on('data', function (chunk) {
    str += chunk;
  });

  response.on('end', function () {
    const count = str.match(/age=([5-9]\d{1,})/gm).length;
    console.log(count);
  });
}

https.get('https://coderbyte.com/api/challenges/json/age-counting', callback).end();