The JavaScript removeEventListener() method is used to remove an event listener from an element that has been previously attached with the addEventListener() method.
Following is the code for removeEventListener() method −
Example
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
body {
font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
.sample{
font-size: 18px;
font-weight: 500;
color:red;
}
</style>
</head>
<body>
<h1>JavaScript removeEventListener() method</h1>
<div class="sample"></div>
<button class="Btn">CLICK HERE</button>
<h3>
Click on the above button to print a number
</h3>
<button class="Btn">Remove event Listener</button>
<h3>Click on the above button to remove the event listener of the first button</h3>
<script>
let sampleEle = document.querySelector('.sample');
let j=0;
function printNum(){
sampleEle.innerHTML += 'Number = ' + j++ + '<br>';
}
document.querySelector('.Btn').addEventListener('click',printNum);
document.querySelectorAll('.Btn')[1].addEventListener('click',()=>{
document.querySelector('.Btn').removeEventListener('click',printNum);
sampleEle.innerHTML = 'Event listener has been removed';
})
</script>
</body>
</html>Output
The above code will produce the following output -
On clicking ‘CLICK HERE’ three times −
On clicking the ‘Remove event Listener’ button and clicking on the ‘CLICK HERE’ button again −
