Add canvas to a page with javascript

Question

I am trying to use Javascript in order to add a canvas to one page which originally does not have one. I am trying to do the following:

var canv=document.cre         


        

Answer 1

var canv=document.createElement("canvas");
canv.setAttribute("id", "canvasID");
document.body.appendChild(canv);

Without something like that third line, your new canvas is never actually inserted into the page.