Formatting google chart area date( like Mar 2012, Oct 2013 etc) - google-visualization

Question

I want to show Google Chart Area date as Mar 2012, Oct 2013 etc. There should not be any date digits in the format. I can only find 3 formats as
formats
var formatter_long = new google.visualization.DateFormat({formatType: 'long'});
var formatter_medium = new google.visualization.DateFormat({formatType: 'medium'});
var formatter_short = new google.visualization.DateFormat({formatType: 'short'});
Resulting in to
February 28, 2008 (long)
Feb 28, 2008 (medium)
2/28/08 (short)
long and medium work for me if I can remove date digits from the result. Is there a chance to do it somehow?

Answer 1

Google uses a subset of the ICU SimpleDateFormat standard.
If you mean "remove date digits" as in "remove the day and display just month/year" then you could format the string as follows:
function drawVisualization() {
// Create and populate the data table.
var data = new google.visualization.DataTable();
data.addColumn('date', 'Date');
data.addRows([
[new Date(2012,1,5)],
[new Date(2012,2,10)],
[new Date(2012,3,15)],
[new Date(2012,4,20)]
]);
alert(data.getFormattedValue(3,0));
var formatter1 = new google.visualization.DateFormat({pattern: 'yyyy, MMM'});
formatter1.format(data,0);
alert(data.getFormattedValue(3,0));
}
When you define the data table, the first alert will list the formatted date as "May 20, 2012". Once you apply the formatter, it will read "May, 2012" only. I think this is what you want. You can change the format as desired.