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NodeJS Tutorial Day 3

Learning Objective: Let’s play with some features of NodeJS to understand its structure and workings.

Creation of Function and display its output to Console

function sum(no1,no2){
    return (no1+no2);
}

console.log(sum(10,20));

Now let’s create our own Library / Module and make it into a separate file (I will create 2 files here, 1 file for the library and 1 file for calling the library)

My Library (mylib.js)

exports.sum = (no1,no2) => no1 + no2;

My File where I will import the above library and will use the library’s function

var mylib = require("./mylib");

console.log(mylib.sum(10,20));

Simple If conditions

no1=0;

if(no1>0)
{
    console.log("Positive");
}
else if(no1<0)
{
    console.log("Negative");
}
else
{
    console.log("Zero");
}

Simple Loop

for(i=1;i<10;i++)
{
    console.log(i);
}

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