what is an 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: event listener javascript

document.querySelector('div').addEventListener('click', () => {
  console.log('div clicked');
});

Example 4: javascript event listener

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

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