Home/ Questions/Q 8388415
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-09T18:28:06+00:00

I would like to read some data from a GoogleFusion table and then use

  • 0

I would like to read some data from a GoogleFusion table and then use the results, being new to javascript, I would like to understand how to expose the results so that I can use it globally, here is what I have so far:

<!DOCTYPE html>
<meta charset="utf-8">
<head>
    <script src="http://ft2json.appspot.com/api/ft2json.js" type="text/javascript"></script>
    <script type="text/javascript">

    var results = ft2json.query(
        'SELECT * FROM 1j1kKW9s9CrtZ6_o6MdC-xb0YNWb73rQQYENmzQ', /* Fusion Tables query. */
        function(result) {
            /* Callback function. */
            console.log(result);
        },
        {
            /* Optional parameters. */
            start : 25,
            limit : 50
        }
    );
    console.log('data', results);
    </script>
</head>

<body>

</body>
</html>

The first console.log returns the Object, but the second console.log('data', results); returns Undefined.

In the Chrome console the console.log('data', results); is read first, which I don’t understand why?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Here is what happened

    1. Your query was sent (query function)
    2. console.log(‘data’, results) was invoked
    3. Your callback function was invoked

    The query is asynchronous. So, what happened is that your code keeps running while waiting for the query result. See examples of what you can do below.

    Example 1 

        ft2json.query(
        'SELECT * FROM 1j1kKW9s9CrtZ6_o6MdC-xb0YNWb73rQQYENmzQ', /* Fusion Tables query. */
        function(result) {
            /* Callback function. */
            console.log(result);
            // do stuff with result object here
        },
        {
            /* Optional parameters. */
            start : 25,
            limit : 50
        }
    );
</script>

    Example 2 

        var doSomethingWithResult = function (result) {
         // do stuff with result object here
    };

    ft2json.query(
        'SELECT * FROM 1j1kKW9s9CrtZ6_o6MdC-xb0YNWb73rQQYENmzQ', /* Fusion Tables query. */
        function(result) {
            /* Callback function. */
            doSomethingWithResult(result);
        },
        {
            /* Optional parameters. */
            start : 25,
            limit : 50
        }
    );
</script>
    • 0