Load remote data as DataTable for Google Chart

gistfile1.coffee

jQuery.ajax
  async: false
  dataType: 'json'
  url:      '/path/to/data.json'
  success:  (data) ->
    google.load 'visualization', '1', {packages: ['corechart']}
    google.setOnLoadCallback ->
      table = new google.visualization.DataTable()
      table.addColumn 'datetime', 'Timestamp'
      table.addColumn 'number', 'Memory Total'
      
      jQuery.each data, (i, row) ->
        table.addRow [new Date(row.timestamp), row.memory_total]
        
      options = {title: 'Memory Usage', vAxis: {format: '# MB', minValue: 0}}
      chart = new google.visualization.LineChart document.getElementById 'chart_div'
      
      chart.draw table, options