<script>

let numOne = '';
let operator = ''; 
let numTwo = '';
const $operator = document.querySelector('#operator'); 
const $result = document.querySelector('#result');
document.querySelector('#num-0').addEventListener('click', () => {}); 
document.querySelector('#num-1').addEventListener('click', () => {}); 
document.querySelector('#num-2').addEventListener('click', () => {}); 
document.querySelector('#num-3').addEventListener('click', () => {}); 
document.querySelector('#num-4').addEventListener('click', () => {}); 
document.querySelector('#num-5').addEventListener('click', () => {}); 
document.querySelector('#num-6').addEventListener('click', () => {}); 
document.querySelector('#num-7').addEventListener('click', () => {});
document.querySelector('#num-8').addEventListener('click', () => {}); 
document.querySelector('#num-9').addEventListener('click', () => {}); 
document.querySelector('#plus').addEventListener('click', () => {}); 
document.querySelector('#minus').addEventListener('click', () => {}); 
document.querySelector('#divide').addEventListener('click', () => {}); 
document.querySelector('#multiply').addEventListener('click', () => {}); 
document.querySelector('#calculate').addEventListener('click', () => {}); 
document.querySelector('#clear').addEventListener('click', () => {});

</script>