Sometimes, we want to parse an RSS feed using JavaScript.
In this article, we’ll look at how to parse an RSS feed using JavaScript.
How to parse an RSS feed using JavaScript?
To parse an RSS feed using JavaScript, we use the DOMParser constructor.
For instance, we write
const res = await fetch(rssUrl);
const htmlTxt = await res.text();
const domParser = new DOMParser();
const doc = domParser.parseFromString(htmlTxt, "text/html");
const feedUrl = doc.querySelector('link[type="application/rss+xml"]').href;
to call fetch with the rssUrl to make a request to get the RSS text.
Then we call res.text to parse the response as a text string.
Next, we create a DOMParser object.
Then we call parseFromString to parse the htmlTxt as HTML.
And then we call querySelector to select a link eleemnt with type attribute application/rss+xml.
Conclusion
To parse an RSS feed using JavaScript, we use the DOMParser constructor.
