<span class="croll-btn-icon" id="scrollBtn"><i class="fas fa-long-arrow-alt-down"></i></span>
let scrollBtn = {
scrollBtn: document.querySelector('#scrollBtn'),
start: function() {
let that = this;
this.scrollBtn.addEventListener('click', function(e){
that.scroll(e);
})
},
scroll: function(elem){
let clickElemnt = elem.target;
console.log(clickElemnt)
}
}
scrollBtn.start()