TypeError: google.visualization is undefined

Question

I\'m trying to work with Google charts API, but I get an error I can\'t understand:

Here is my code:

Answer 1

Try this way. This is working fine for me

    var timeout;
    google.charts.load('current', { 'packages': ['corechart'] });
    $(document).ready(function(){
       timeout = setInterval(function () {
          if (google.visualization != undefined) {
             drawChart();
             clearInterval(timeout);
          }
       }, 300);
    });

    function drawChart(range, type) {
       var data = new google.visualization.DataTable();
    .....
    }