how to add event listener in javascript code example

Example 1: javascript onclick event listener

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

Example 2: event listener javascript

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

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

Example 3: js addeventlistener

var element=document.getElementById("some_id");
var listener=element.addEventListener('click',function(event){                          
            
 });

Example 4: event listener javascript

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

Example 5: javascript event listener

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

Example 6: addEventListener

<body style="height: 5000px">
 <style>
    body, /* blink currently has bug that requires declaration on `body` */
    html {
      scroll-snap-type: y proximity;
    }
    .snaptarget {
      scroll-snap-align: start;
      position: relative;
      top: 200px;
      height: 200px;
      background-color: green;
    }
 </style>
 <div class="snaptarget"></div>
</body>