Create your own module in Nodejs

Exports

Direct exports function declaration

Create new file mydate.js and write the following code

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

Export after function declaration

Declare function and write the definition. Then exports.

function getPlus(a, b) {
   return a + b;
}
function getMultiply(a, b) {
   return a*b;
}
exports.getPlus = getPlus;
exports.getMultiply = getMultiply;

Or, without using function, write the following codes

const getName = () => {
   return ‘Skywalker’;
}
const getOrigin = () => {
   return ‘Tatooine’;
}
exports.getName = getName;
exports.getOrigin = getOrigin;

Module.exports

function getPlus(a, b) {
   return a + b;
}
function getMultiply(a, b) {
   return a*b;
}
module.exports = {
getPlus,
getMultiply
}

Importing the Modules

Use require — assign the result to a variable. This can then be used to invoke any methods the module exposes

var dt = require(‘./myfirstmodule’)
.
.
console.log(‘Current date and time : ‘ + dt.myDateTime());.