jscript.js

$(document).ready(function(){
  $('#search').click(function(){
    //getting searchterm
    var searchTerm = $('#searchTerm').val();
    //API url
    var url = "https://en.wikipedia.org/w/api.php?action=opensearch&search="+searchTerm+"&format=json&callback=?";
    
    $.ajax({
      type: 'GET',
      url: url,
      async: false,
      dataType: "json",
      success: function(data){
       // console.log(data[1][0]);
       // console.log(data[2][0]);
       // console.log(data[3][0]);
        $('#output').html('');
        for(var i=0;i<data[1].length;i++){
            $('#output').prepend("<li><a href="+data[3][i]+"><h2>"+ data[1][i]+"</h2></a><p>"+data[2][i]+"</p></li>");
        }
            $('#searchTerm').val('');
      },
      error: function(errorMessage){
        alert("ERROR");
      }
    })
    
  });
  $('#searchTerm').keypress(function(e){
      if(e.which ==13){
        $('#search').click();
      }
    });
});