Custom modules files

 Custom module :- 

Test1.js 

console.log("Custom module files")

// yaha par maine function likhkar usko get kiya hai dusre isme

function sumoftheelement(arr){

    let sum = 0;

    arr.forEach(element => {

        sum += element;

    });

    return sum;

}

// agar apko ye function ko dusre file ko accessible banana hai to aap exports karke likh sakte hai

// aabhi aap usko dusre file me access kar sakte hai

// module.exports = sumoftheelement;

// aap ikso object banakar bhi bhej sakte hai

module.exports = {

    sumoftheelement : sumoftheelement,

    name:"Vishal",

    age:23

}

// aap particulat key me bhi bhej sakte hai

// module.exports.name = "Test";

Test12.js

console.log("test 1")

const test1 = require('./test1')

// console.log(test1([2,3]))

// isse aab particular element ko access kar sakte hai

console.log(test1.name)