Express.js | res.clearCookie() Function

18 Jun, 2020
The res.clearCookie() function is used to clear the cookie specified by name. This function is called for clearing the cookies which as already been set. For example if a user cookie is set, then it can be cleared using this function.
Syntax:
res.clearCookie(name, [ options ])
Parameters:
Name: It is the name of the cookie which is to be cleared. Like in the following example, we have cleared the title cookie.Options: It is object that can have various properties like domain, encode, path, secure, etc.
Name: It is the name of the cookie which is to be cleared. Like in the following example, we have cleared the title cookie.
Options: It is object that can have various properties like domain, encode, path, secure, etc.
Installation of express module:
You can visit the link to Install express module. You can install this package by using this command.npm install expressAfter installing the express module, you can check your express version in command prompt using the command.npm version expressAfter that, you can just create a folder and add a file for example, index.js. To run this file you need to run the following command.node index.js
You can visit the link to Install express module. You can install this package by using this command.npm install express
npm install express
After installing the express module, you can check your express version in command prompt using the command.npm version express
npm version express
After that, you can just create a folder and add a file for example, index.js. To run this file you need to run the following command.node index.js
node index.js
Filename: index.js
var express = require('express');var app = express();var PORT = 3000;  app.get('/', function(req, res){      // Setting cookie (key-value)    res.cookie('title', 'geeksforgeeks');      // Clearing the cookie    res.clearCookie('title');      console.log("Cookie cleared");});  app.listen(PORT, function(err){    if (err) console.log(err);    console.log("Server listening on PORT", PORT);});
Steps to run the program:
The project structure will look like this:Make sure you have installed express module using the following command:npm install expressRun index.js file using below command:node index.jsOutput:Server listening on PORT 3000
Now open your browser and go to http://localhost:3000/, you can see the following output on your screen:Server listening on PORT 3000
Cookie cleared

The project structure will look like this:
Make sure you have installed express module using the following command:npm install express
npm install express
Run index.js file using below command:node index.jsOutput:Server listening on PORT 3000

node index.js
Output:
Server listening on PORT 3000

Now open your browser and go to http://localhost:3000/, you can see the following output on your screen:Server listening on PORT 3000
Cookie cleared

Server listening on PORT 3000
Cookie cleared

Express.js
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