text: import { Handler } from "./Handler.js";
  
  var cvs = document.querySelector("canvas");
  cvs.width = window.innerWidth;
  var ctx = cvs.getContext("2d");
  var handler = new Handler(cvs);
  ctx.strokeStyle = "black";
  
  cvs.addEventListener("pointerdown", evt => handler.start(evt));
  cvs.addEventListener("pointermove", evt => handler.record(evt));
  cvs.addEventListener("pointerup", evt => handler.end(evt));
  