CODE EXAMPLE FOR JAVASCRIPT

disable scroll on modal open

// Select required elements from the DOM
const modal = document.querySelector("#modal");
const body = document.querySelector("body");

const showModal = function (e) {
modal.classList.toggle("hidden");

if (!modal.classList.contains("hidden")) {
// Disable scroll
body.style.overflow = "hidden";
} else {
// Enable scroll
body.style.overflow = "auto";
}
};