Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Removing listener from inside outer function in JavaScript?
To remove listener from outer function, use removeEventListener().
Example
Following is the code −
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<link rel="stylesheet"
href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<body>
<button id="demo">Press Me</button>
</body>
<script>
var demoId = document.getElementById('demo');
demoId.addEventListener('click', function fun() {
outerFunction(this, fun);
}, false);
function outerFunction(self, funct) {
console.log('outer function is called....');
self.removeEventListener('click', funct, false);
console.log("Listener has been removed...")
}
</script>
</html>To run the above program, save the file name anyName.html(index.html) and right click on the file. Select the option “Open with live server” in VS Code editor.
Output
This will produce the following output −
After clicking the button “Press Me”.
This will produce the following output on console −
Updated on: 24-Oct-2020
56 Views
Advertisements