Answers for "addEventListener this"

js add click listener

document.getElementById("myBtn").addEventListener("click", function() {
  alert("Hello World!");
});

javascript addeventlistener

var element = document.getElementById("#id");
element.addEventListener('click', function(){
	console.log("click");
});

js addeventlistener

document.getElementById("example").addEventListener('click', function() {
  alert('Click');
});