custom module in node js

 index.js

exports the node js module 

const mod = require("./mod");

console.log(mod.sum([3,3]));

console.log(mod.name);

console.log(mod.gender);

console.log("index file here");

    

mod.js

console.log("Module file here");

function sum(arr){

    addition = 0;

    arr.forEach(element => {

        addition += element;

    });

    return addition;

}

module.exports = {

     sum:sum,

    'name':'vishal',

    'gender':'male'

};