Reset canvas on button click

@akash1 wrote:

Hi,
I want to reset (i.e. remove every thing that is on canvas )my canvas on click of a button
Here is my code :

document.getElementById("reset-canvas").onclick=function(event){
  event.preventDefault();
  nodeDataArray=[];
  linkDataArray=[];
}

But it doesn't remove the shapes that are drawn on the canvas.How can i do this?
Thanks in advance.

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