Destroy chart.js bar graph to redraw other graph in same

Question

I am using the Chart.js library to draw a bar graph, it is working fine, but now I want to destroy the bar graph and make

Answer 1

Create a global object:

window['chart-' + chartId] = new Chart(...);

Access and destroy to procced with redraw:

if ( window['chart-' + chartId] != undefined ) {
    window['chart-' + chartId].destroy();
}