what is addeventlistener in js code example

Example 1: javascript addeventlistener

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

Example 2: event listener javascript

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

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

Example 3: javascript eventlistener

document.addEventListener('click', () => {
    
});