This is my code:
var data = new google.visualization.DataTable();
data.addColumn('date', 'Value');
data.addColumn('number', 'Value');
var jsonData = [ { "added_date" : "new Date(2018,0,31)",
"count" : "42" },
{ "added_date" : "new Date(2018,1,1)",
"count" : "127" },
{ "added_date" : "new Date(2018,1,2)",
"count" : "26" },
{ "added_date" : "new Date(2018,1,3)",
"count" : "94" },
{ "added_date" : "new Date(2018,1,5)",
"count" : "14" },
{ "added_date" : "new Date(2018,1,6)",
"count" : "31" },
{ "added_date" : "new Date(2018,1,7)",
"count" : "2" },
{ "added_date" : "new Date(2018,1,8)",
"count" : "214" },
{ "added_date" : "new Date(2018,1,9)",
"count" : "26" },
{ "added_date" : "new Date(2018,1,10)",
"count" : "26" },
{ "added_date" : "new Date(2018,1,11)",
"count" : "10" },
{ "added_date" : "new Date(2018,1,12)",
"count" : "102" },
{ "added_date" : "new Date(2018,1,13)",
"count" : "6" } ];
for (var i = 0; i < jsonData.length; i++) {
data.addRow([jsonData[i].added_date,parseInt(jsonData[i].count)]);
}
var options = {
title: 'Date wise Usage'
};
var chart = new
google.visualization.ColumnChart(document.getElementById("columnchart"));
chart.draw(data, options);
when execute i have got the error
*Uncaught Error: Type mismatch. Value new Date(2018,0,31) does not match
type date in column index 0*
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