How can JavaScript be utilized to improve the functionality and user experience of the voting system described in the code snippet?

The issue with the current voting system is that it requires a page reload every time a user casts a vote, which can be inconvenient for the user and disrupt their experience. To improve this, JavaScript can be used to make the voting process more seamless by updating the vote count dynamically without the need for a page refresh. ```javascript // JavaScript code to handle voting functionality document.querySelectorAll('.vote-btn').forEach(button => { button.addEventListener('click', function() { const postId = this.dataset.postId; const voteType = this.dataset.voteType; // Send an AJAX request to update the vote count fetch('update-vote.php', { method: 'POST', body: JSON.stringify({ postId, voteType }), headers: { 'Content-Type': 'application/json' } }) .then(response => response.json()) .then(data => { // Update the vote count on the page document.querySelector(`#vote-count-${postId}`).innerText = data.voteCount; }) .catch(error => console.error('Error updating vote count:', error)); }); }); ``` In this JavaScript code snippet, we are using event delegation to handle click events on all elements with the class 'vote-btn'. When a vote button is clicked, an AJAX request is sent to 'update-vote.php' with the postId and voteType data. The PHP script 'update-vote.php' should handle the vote update logic and return the updated vote count. Finally, the JavaScript updates the displayed vote count on the page without requiring a full page reload.