how to run javascript program in visual studio code

1id =vinay;
2const mul=function multi(a,b) {
3  return (a*b)
4  document.getElementById("vinay").innerHTML=mul(5,8)
5}

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

1Simply open the .js file in question in VS Code, 
2  switch to the 'Debug Console' tab, hit the debug button 
3  in the left nav bar, and click the run icon (play button)!