javascript how to stop interval from running code example

Example 1: stop a setinterval

let myVar = setInterval(() => {console.log('bop'), 1000);

clearInterval(myVar);

Example 2: javascript stop setinterval

let autoScroll = window.setInterval(() => {
  if (window.scrollY >= document.getElementById('second-part').scrollHeight) {

    clearInterval(autoScroll);
  }

  window.scrollBy(0, 10);
}, 25);