NodeJS Modules

NodeJS / NodeJS Modules

Nodejs Modules are JavaScript libraries consists of set of functions.

Modules Usage
To use a module it requires require () function.

Program Name

Write a Program for NodeJS Modules.

Theory
Program for NodeJS Modules

Program Code


File Name: helloworld.js

var httpobj = require('http');
httpobj.createServer(function (req, res) 
{
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World!');
}).listen(8080);

Input

No Inputs.

Output
Hello World!

Compiling and Running

1. Open terminal and change the drive to code folder.
2. compiling: node  helloworld.js
3. Running: open browser and type
http://localhost:8080/
4. See the output

Creating own Modules

Program Name

Write a Program for Creating own Modules.

Theory
Program for NodeJS Modules

Program Code

File Name: ownmodule.js

exports.DateTimeObj = function () 
{
return Date();
};

File Name: Nodeexample.js


var http = require('http');
var dtobj = require('./ownmodule');

http.createServer(function (req, res) 
{
res.writeHead(400, {'Content-Type': 'text/html'});
res.write("Current Date and time: " + dtobj.DateTimeObj());
res.end();
}).listen(8080);

Input

No Inputs.

Output
Current Date and time: Fri Jan 21 2022 22:39:37 GMT+0500 (West Kazakhstan Time)

Compiling and Running

Node Nodeexample.js

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