functions.php
/* Add JS for online editor */
function create_demo_url() {
?>
if (is_singular()) {
<script>
var postId = window.location.href.replace(/^.*nguyenvanhieu.vn/i, "").replace(/\/[?&].*/i, "").replace(/\//g, '');
var demos = document.querySelectorAll('.ltkk-demo a');
for (x of demos) {
let idx = x.getAttribute('data-idx');
let url = "https://nguyenvanhieu.vn/editor/?url=" + postId + "&idx=" + idx;
x.href = url;
}
</script>
}
<?php
}
add_action('wp_footer', 'create_demo_url');