how can i run my code the javascript in visual studio code example

Example 1: how to run javascript program in visual studio code

id =vinay;
const mul=function multi(a,b) {
  return (a*b)
  document.getElementById("vinay").innerHTML=mul(5,8)
}

Example 2: how to run javascript in visual studio code

// install live server and then right click on your index.html and the keep the browser ready