this in addeventlistener code example
Example 1: js addeventlistener
document.getElementById("example").addEventListener('click', function() {
alert('Click');
});
Example 2: javascript addeventlistener
var element = document.getElementById("#id");
element.addEventListener('click', function(){
console.log("click");
});
Example 3: js addeventlistener
var element=document.getElementById("some_id");
var listener=element.addEventListener('click',function(event){
});