const items=document.querySelectorAll(".accordion button");
function toggleAccordion(){
const itemToggle=this.getAttribute('aria-expanded');
for (i=0; i < items.length; i++){
items[i].setAttribute('aria-expanded', 'false');
}
if(itemToggle=='false'){
this.setAttribute('aria-expanded', 'true');
}}
items.forEach(item=> item.addEventListener('click', toggleAccordion));