script to quickly get the number of page views for all of the wikipedia articles listed on a wikipedia category page.

page-views.js

const parser = new DOMParser();
Promise.all(
  [...document.querySelectorAll('.mw-category-group a')]
    .map(a => {
        return fetch(`https://en.wikipedia.org/w/index.php?title=${a.href.split('wiki/')[1]}&action=info`)
          .then(r => r.text()).then(bodyText => parser.parseFromString(bodyText, 'text/html'))
          .then(doc => {
              const title = doc.querySelector('#mw-pageinfo-display-title td ~ td').textContent;
              const views = doc.querySelector('.mw-pvi-month').textContent;
              return `Title: ${title} Views: ${views}`;
            }
          )
      }
    )
  ).then(results => {
      const getViewCount = result => Number(result.match(/Views: ([\d,]+)/)[1].replace(',',''));
      const sortedResults = results.sort((a,b) => getViewCount(b) - getViewCount(a))
      return sortedResults.join('\n');
    }
  ).then(output => console.log(output));