Tractor purchase

by E D

HTML

<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<script src="https://highcharts.github.io/export-csv/export-csv.js"></script>

<div id="container" style="min-width: 310px; height: 400px; margin: 0 auto"></div>

JavaScript

$(function() {
  //settings
  var indicator = "AG.AGR.TRAC.NO"; //quid if request fail: vector empty need to fix this
  var country1= "VNM";
  var country2= "KHM";
  var display=60;
    var time=60;
  // Set up URL request
  var url_country1 = "https://api.worldbank.org/v2/countries/" + country1 + "/indicators/" + indicator + "?per_page=" + display + "&MRV=" + time + "&format=json"
  var url_country2 = "https://api.worldbank.org/v2/countries/" + country2 + "/indicators/" + indicator + "?per_page=" + display + "&MRV=" + time + "&format=json"


console.log(url_country1)
console.log(url_country2)



  var arrayString = [],
    Date = [],
    array_country1 = [],
    array_country2 = [],
    arrayString_country1 = [],
    arrayString_country2 = []


  $.ajax({
    url: url_country1,
    complete: function(json) {
      text = json.responseText
      json = JSON.parse(json.responseText);

      $.each(json[1], function(i, data) {
        country_name1 = data.country.value;
        // fill the string data array
        arrayString_country1.push(data.value);
        //To set date parameter
            Date.push(data.date);
      });

      $.ajax({
        url: url_country2,
        complete: function(json) {
          json = JSON.parse(json.responseText);

          $.each(json[1], function(i, data) {
            country_name2 = data.country.value;
            arrayString_country2.push(data.value);
                  
          });

                  // querry send string that we need to convert into numbers or null
                  for (var i = 0; i < arrayString_country1.length; i++) { // we use world lenght since the world serie is supposed to be  the longer (the one with no missing values)
                    if (arrayString_country1[i] != null) {
                      array_country1.push(parseFloat(arrayString_country1[i]))
                    } else {
                      array_country1.push(null)
                    };

                    if...