Hi! I'm following the developer guide
at
https://developers.google.com/chart/interactive/docs/customizing_tooltip_content#full.
I get 'Sankey chart.html:66 Uncaught (in promise) TypeError:
chart.setAction is not a function' error in the browser console for the
following implementation.
I'm wondering what do I wrong?
<script type="text/javascript">
google.charts.load("current", {packages:['sankey', 'wordtree']});
google.charts.setOnLoadCallback(drawSankeyChart);
function drawSankeyChart() {
var data = new google.visualization.DataTable();
data.addColumn('string', 'From');
data.addColumn('string', 'To');
data.addColumn('number', 'Weight');
data.addRows([
...
]);
// Set chart options
var options = {
width: 1000,
tooltip: {
trigger: 'selection'
}
};
var chart = new
google.visualization.Sankey(document.getElementById('sankey_multiple'));
chart.setAction({
id: 'remove',
text: 'Remove',
action: function() {
selection = chart.getSelection();
alert(selection[0].row + 'will be removed');
}
});
chart.draw(data, options);
};
...
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