I get the above error on the jQuery v1.7.2 code when I try to use the $.each method:

$.post('url_of_php_file.php',
            $.param( {

            }),
            function(data){
                $.each(data.articles, function(index, value){
                .....
});

The request returns:

{"articles": [
    {
        "id":"11",
        "date":"2012-12-19 15:52:06",
        "title":"url_title",
        "link":"url_link",
        "available":"1"
     },
    ..... *more rows like the above*
]}

Why do I get this error?

javascript jquery typeerror
Edit
Report