Counting the ages that is greater or equal to 50

ago-counter.js

const https = require("https");

https.get("https://coderbyte.com/api/challenges/json/age-counting", (resp) => {
  resp.setEncoding("utf-8");
  let data = "";

  // parse json data here...
  resp.on("data", (d) => {
    data += [d];
  });

  resp.on("end", () => {
    let parsedData = data
      .split(",")
      .filter((data) => !data.indexOf(" age="))
      .map((data) => data.replace(" age=", ""))
      .map((data) => parseInt(data))
      .filter((data) => {
        return data >= 50;
      }).length;
    console.log(parsedData);
  });
});