Screen Scraping

I wanted a list of the episode titles of "Agatha Christie's Poirot", my favorite TV detective series. I decided to scrape the HTML from wikipedia's entry. The data looks like this:

<tr>
<th scope="row" style="text-align:center;"><a 
href="/wiki/Poirot%27s_Early_Cases#The_Adventure_of_the_Clapham_Cook" 
title="Poirot's Early Cases">The Adventure of the Clapham Cook</a></th>
<td style="text-align:center;">8 January 1989</td>
<tr>
<th scope="row" style="text-align:center;"><a 
href="/wiki/Murder_in_the_Mews_(TV_1989)" 
class="mw-redirect" 
title="Murder in the Mews (TV 1989)">Murder in the Mews</a></th>
<td style="text-align:center;">15 January 1989</td> 

I want the text from the <a> tag that resides inside the <th> tag.

I found a Javascript library named cheerio that seemed to do what I require.

$ npm install request cheerio

// index.js
let request = require('request');
let cheerio = require('cheerio');
let lastEpisode = false;
request({
    uri: "https://en.wikipedia.org/wiki/List_of_Agatha_Christie's_Poirot_episodes"
  }, function (err, response, html) {
    if (err || response.statusCode !== 200) {
      console.log('E R R O R ' + response.statusCode);
      return;
    }
    var $ = cheerio.load(html);
    $('th a').each(function(i, elem) {
      let episode = $(this).text();
      // eliminate "[fn" (footnotes)
      if (!lastEpisode && episode.substring(0, 3) !== '[fn') {
        console.log(episode);
      }
      lastEpisode = lastEpisode || (episode.substring(0, 7) === "Curtain");
    });
});

$ node index.js
The Adventure of the Clapham Cook
Murder in the Mews
The Adventure of Johnnie Waverly
Four and Twenty Blackbirds
The Third Floor Flat
Triangle at Rhodes
Problem at Sea
The Incredible Theft
The King of Clubs
The Dream
Peril at End House
The Veiled Lady
The Lost Mine
The Cornish Mystery
The Disappearance of Mr. Davenheim
Double Sin
The Adventure of the Cheap Flat
. . .
Cat Among the Pigeons
Third Girl
Appointment with Death
Three Act Tragedy
Hallowe'en Party
Murder on the Orient Express
The Clocks
Elephants Can Remember
The Big Four
Dead Man's Folly
The Labours of Hercules
Curtain: Poirot's Last Case