var hdValue = document.getElementById("<%=hdData.ClientID%>").value;

var response = $.parseJSON(hdValue);

var data = new google.visualization.DataTable();

data.addColumn('string', 'Employee');

data.addColumn('string', 'Manager');

data.addColumn('string', 'PhoneNo');

  for (var i = 0; i < response.length; i++)

{

var row = new Array();

row[0] = response[i].Employee ;

row[1] = response[i].Manager;

row[2] = response[i].PhoneNo;

 // //data.addRow(row);

data.addRows([

[{ v: response[i].Employee, f: response[i].Employee +'<img 
src="images/phone.png" />'+response[i].PhoneNo + '<div class="plus"><img 
src="images/plus.png" style="height: 27px; width: 33px" /></div>' },

{ v: response[i].Manager, f: response[i].Manager + '<div class="plus"><img 
src="images/plus.png" style="height: 27px; width: 33px" /></div>' }, 
response[i].PhoneNo]

]);

}

 // Create and draw the visualization.

var chart = new google.visualization.OrgChart(document.getElementById(
'chart_div'));

var runonce = google.visualization.events.addListener(chart, 'ready', 
function () {

// set up + sign event handlers

var previous;

$('#chart_div').on('click', 'div.plus', function () {

var selection = chart.getSelection();

var row;

if (selection.length == 0) {

row = previous;

}

else {

row = selection[0].row;

previous = row;

}

                    

* console.log(this);*

                        

 *var collapsed = chart.getCollapsedNodes();*

* var collapse = (collapsed.indexOf(row) == -1);*

chart.collapse(row, collapse);

chart.setSelection();
 });
In console.log I was getting error for console so I added

var alertFallback = true;

if (typeof console === "undefined" || typeof console.log === "undefined") {

console = {};

if (alertFallback) {

console.log = function (msg) {

alert(msg);

};

} else {

console.log(this);

}

}

but for *var collapse = (collapsed.indexOf(row) == -1); error am getting is 
object undefined.*

 

*Please suggest.*

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