I am having an issue when trying to build an Annotated Timeline Graph using

Question

0

Editorial Team

Asked: May 30, 20262026-05-30T23:44:59+00:00 2026-05-30T23:44:59+00:00

I am having an issue when trying to build an Annotated Timeline Graph using

0

I am having an issue when trying to build an Annotated Timeline Graph using the Google Charts API.

In the JSON, for the first “date” column, if I use:

"v": new Date(2010, 01, 01)

Then I get a JavaScript error from my page saying that I have invalid JSON.

If instead I use:

"v": "new Date(2010, 01, 01)" then I get the error TypeError: 'undefined' is not a function (evaluating 'M[y]()').

My JavaScript code is simply a modification of the example code for a Pie Graph found at: http://code.google.com/apis/chart/interactive/docs/php_example.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Strict//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
  <head>
    <!--Load the AJAX API-->
    <script type="text/javascript" src="https://www.google.com/jsapi"></script>
    <script type="text/javascript" src="scripts/jquery-1.6.2.js"></script>
    <script type="text/javascript">

    // Load the Visualization API and the piechart package.
    google.load('visualization', '1', {'packages':['annotatedtimeline']});

    // Set a callback to run when the Google Visualization API is loaded.
    google.setOnLoadCallback(drawChart);

    function drawChart() {
      var jsonData = $.ajax({
          url: "getData.php",
          dataType:"json",
          async: false
          }).responseText;

      // Create our data table out of JSON data loaded from server.
      var data = new google.visualization.DataTable(jsonData);

      // Instantiate and draw our chart, passing in some options.
      var chart = new google.visualization.AnnotatedTimeLine(document.getElementById('chart_div'));
      chart.draw(data, {width: 400, height: 240});
    }

    </script>
  </head>

  <body>
    <!--Div that will hold the pie chart-->
    <div id="chart_div" style="height: 200px; width:200px;"></div>
  </body>
</html>

I am aware that people have had similar problems:

http://groups.google.com/group/google-visualization-api/browse_thread/thread/4cfe7f07e5ef4bcc

http://www.mail-archive.com/google-visualization-api@googlegroups.com/msg02940.html

However in these threads/pages, the answer seems to be to use "v": new Date(2010, 01, 01) however this does not work for me.

I’m not sure what I am missing here.

Thanks