gistfile1.txt

import 'dart:html';
import 'dart:js';

void main() {
  JsObject google = context['google'];
  google.callMethod('load', ['visualization', '1',
                             new JsObject.jsify({'packages': ['corechart']})]);
  google.callMethod('setOnLoadCallback', [() {
    var data = google['visualization'].callMethod('arrayToDataTable',
        new JsObject.jsify([
            ['Year', 'Sales', 'Expenses'],
            ['2004',  1000,    400],
            ['2005',  1170,    460],
            ['2006',  660,     1120],
            ['2007',  1030,    540]]));

    var options = new JsObject.jsify({'title': 'Company Performance'});

    var chart = new JsObject(google['visualization']['LineChart'],
        [querySelector('#chart_div')]);
    chart.callMethod('draw', [data, options]);
  }]);
}