trend articles on local wiki

uptrends.js

if ($("div#uptrends").hasClass("uptrends")){
  (new mw.Api()).get({
    format: 'json',
    action: 'query',
    list: 'mostviewed',
    pvimlimit: 50,
  }).done(function (data) {
    var popular10 = data.query.mostviewed.slice(0, 10)
    var elements = popular10.map(function (item) {
      var a = document.createElement('a')
      a.href = mw.util.getUrl(item.title)
      var li = document.createElement('li')
      li.appendChild(a)
      return li
    })

    var ul = document.createElement('ul')
    elements.forEach(function (li) {
      ul.appendChild(li)
    })

    var uptrends = document.getElementById('uptrends')
    uptrends.appendChild(ul)
  })
}