RGraph reloads the previous chart when I reload the page and I click on the body of the page

Question

i use this to clear charts:

for (var i=0; i< document.getElementsByTagName('canvas').length; i++) { RGraph.Clear(document.getElementsByTagName('canvas')[i]); } 

when I reload the previous page and a new chart is placed above the last, and a new label is placed above the last.

I use charts for donuts and circles

thankss !!!

Answer 1

You need to clear the ObjectRegistry that tracks the objects. You can do it with:

 RGraph.ObjectRegistry.Clear(); 

Or you can clear the objects associated with a particular canvas tag with:

 RGraph.ObjectRegistry.Clear(myCanvas); 

Or you can delete a specific object with:

 RGraph.ObjectRegistry.Remove(myObject); 

You can read more about ObjectRegistry in the API documentation page:

https://www.rgraph.net/canvas/docs/api.html#objectregistry

Answer 2

You can also use RGraph.Clear (document.getElementById ("Your item id"));