$('#query').keypress(function (e) {
  if(e.which == 13) {
    var input = $('input:text').val();
    var inpString = input.split(' ');
    var finalQuery = "";
    for(var words=0; words<inpString.length; words++) {
        finalQuery += inpString[words] + '+';
    }

    finalQuery = finalQuery.substring(0, finalQuery.length-1);
    loadArticles(finalQuery);
    console.log('wtf');
  }
});

function loadArticles(keywords) {
  $.ajax({
    url: 'https://en.wikipedia.org/w/api.php?action=query&format=json&list=search&utf8=1&srsearch=' + keywords,
    success: function(data) {
      console.log(data.query.searchinfo.totalhits);
    },
    failure: function(data) {
      console.log(data);
    },
    datatype: 'json'
  });
}