array of elemts by class ts
const showSlides = () => {
const slides = document.getElementsByClassName('slide');
for (let i = 0; i < slides.length; i++) {
const slide = slides[i];
if (slide instanceof HTMLElement) {
// slide is a HTMLElement
slide.style.display = "none";
} else if (slide instanceof SVGElement) {
// slide is a SVGElement
const svgOwner = slide.ownerSVGElement;
} else {
// slide is a Element
const baseUri = slide.baseURI;
}
}
};