[рони]

Shoxrux,

next.onclick =  e=>{
    indexOfList++;
    if(indexOfList >= data.length){
        indexOfList = 0
    }
    title.textContent = data[indexOfList].name
    animal.src = data[indexOfList].src
    descript.textContent =  data[indexOfList].description
}
prev.onclick= e =>{
    indexOfList--;
    if(indexOfList < 0 ) {
      indexOfList = data.length - 1
            };
    title.textContent = data[indexOfList].name
    animal.src = data[indexOfList].src
    descript.textContent =  data[indexOfList].description
}