javascript onclick event listener

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

const element = document.querySelector(".class__name");

element.addEventListener("click", () => {
	console.log("clicked element");
});

let element = document.getElementById("xyz");
//	Event Listener
element.addEventListener("click",  myFunction);

// Call Function On Click
function myFunction() {
  alert("Hello World!");
} 

 document.getElementById("myBtn").addEventListener("click", function(){
  document.getElementById("demo").innerHTML = "Hello World";
}); 

element.addEventListener("click", function(){ 
   element.innerText = "something"; 
}); 

 document.getElementById("myBtn").addEventListener("click", displayDate);