   })
    // }
    //


    var worldBounds = L.latLngBounds(
      L.latLng(-60, -100), //Southwest
      L.latLng(80, 15) //Northeast
    );



    //return the totalConfirmed number of given country
    function tc(country) {
      if (country == undefined) {
        country = 0
      } else {
        country = +country.split("-")[0];
      }
      return country;
    }

    //return the totalRecovered number of given country
    function tr(country) {
      if (country.split("-")[2] == undefined) {
    