js scroll element to top code example

Example 1: javascript scrollintoview

var element = document.getElementById("box");

element.scrollIntoView();
element.scrollIntoView(false);
element.scrollIntoView({block: "end"});
element.scrollIntoView({behavior: "smooth", block: "end", inline: "nearest"});

Example 2: html scroll div to top

var myDiv = document.getElementById('containerDiv');
myDiv.innerHTML = variableLongText;
myDiv.scrollTop = 0;

Example 3: scroll position

$(window).scroll(function() {
	var $height = $(window).scrollTop();
  if($height > 50) {
		//do something
	} else {
		//do something
	}
});