How to track the distance from the top of the page to the block?

Question

JavaScript

Good afternoon, please tell me:

How can I track the distance from the top of the page to the block when scrolling.
In order for the script to connect when it reaches the block...
Now it connects only if the page is refreshed in the position where the distance is exactly or less than 1400px

const block = document.querySelector('.block');
  
// Получаем верхнюю координату блока относительно окна браузера
const getItemTopCoords = block.getBoundingClientRect().top;
  
if (getItemTopCoords + 100 <= 1400) {
  const script = document.createElement('script');
  script.src = './js/icon.js';
  document.body.appendChild(script);  
}

Answer 1

window.addEventListener('scroll', function _scrollhandler() {
  // ... ваш код проверки
  window.removeEventListener('scroll', _scrollhandler)
})