So how do you change the radius of an svg circle using input-range?

Question

JavaScript

(Maybe even with Angular?)
Now, if it looks something like this:
codepen.io/Enclave88/pen/GovowP

Answer 1

It's that simple:

var circle = document.querySelector("circle");
document.querySelector("input").addEventListener("input", function() {
  circle.setAttribute("r", this.value);
});