How to clear a chart from a canvas so that hover events cannot be triggered?

Question

I\'m using Chartjs to display a Line Chart and this works fine:

// get line chart canvas
var targetCanvas = document.getElementById(\'chartCanvas\').getConte         


        

Answer 1

When you create one new chart.js canvas, this generate one new iframe hidden, you need delete the canvas and the olds iframes.

$('#canvasChart').remove(); 
$('iframe.chartjs-hidden-iframe').remove(); 
$('#graph-container').append(''); 
var ctx = document.getElementById("canvasChart"); 
var myChart = new Chart(ctx, { blablabla });

reference: https://github.com/zebus3d/javascript/blob/master/chartJS_filtering_with_checkboxs.html