index.js

Error.stackTraceLimit = Infinity;

const request = require("request");
const FeedParser = require("feedparser");

const feedUrl = "https://news.ycombinator.com/rss";

function foo() {
  let feedparser = new FeedParser();

  request(feedUrl).pipe(feedparser);

  feedparser.on("readable", function () {
    const stream = this; // `this` is `feedparser`, which is a stream
    let item;
    while (item = stream.read()) {
      console.log("[%s] %s", item.pubdate, item.title || item.description);
    }
  });
}

foo();
foo();