assets/js/ui-modals.js

/**
 * UI Modals
 */

'use strict';

(function () {
  // On hiding modal, remove iframe video/audio to stop playing
  const youTubeModal = document.querySelector('#youTubeModal'),
    youTubeModalVideo = youTubeModal.querySelector('iframe');
  youTubeModal.addEventListener('hidden.bs.modal', function () {
    youTubeModalVideo.setAttribute('src', '');
  });

  // Function to get and auto play youTube video
  const autoPlayYouTubeModal = function () {
    const modalTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="modal"]'));
    modalTriggerList.map(function (modalTriggerEl) {
      modalTriggerEl.onclick = function () {
        const theModal = this.getAttribute('data-bs-target'),
          videoSRC = this.getAttribute('data-theVideo'),
          videoSRCauto = `${videoSRC}?autoplay=1`,
          modalVideo = document.querySelector(`${theModal} iframe`);
        if (modalVideo) {
          modalVideo.setAttribute('src', videoSRCauto);
        }
      };
    });
  };

  // Calling function on load
  autoPlayYouTubeModal();
})();