javascript clean up settimeout code example

Example 1: js cleartimeout

var myVar;

function myFunction() {
  myVar = setTimeout(function(){ alert("Hello"); }, 3000);
}

function myStopFunction() {
  clearTimeout(myVar);
}

Example 2: how to reset settimeout in javascript

// Get a reference to the timeout and call wwindow.clearTimeout() on 
// that refrence. 
let timeoutHandle = window.setTimeout(...);

window.clearTimeout(timeoutHandle);