Data Types in Node js

In Node.js, data types are essentially JavaScript data types since Node.js is built on the V8 JavaScript engine. These data types can be broadly classified into primitive and non-primitive types. Below is an overview of data types in Node.js:

Primitive Data Types

These are immutable and represent single values.

1. Number
   Represents both integer and floating-point numbers.

    var abc = 999;

    var msg = 888;

    console.log(abc+msg);

     String

     Represents a sequence of characters enclosed in single ('), double ("),      or backticks (`).

    var abc = "this is node js, having the modification";

    console.log(abc);

   Boolean

   Represents true or false.

    

    let isNodeFun = true;

Undefined

    A variable that has been declared but not initialized

  let value; // undefined          Null

    Represents the intentional absence of any object value.        let emptyValue = null;

Non-Primitive (Complex) Data Types

These can store collections of values or more complex entities.

1. Object
   Represents key-value pairs.

    var abc = {

        cname:"reactjs",

        cdesc:"this is demo"

    }

    console.log(abc);

Array
Special type of object used to store ordered collections.

var abc = ["this is react js",9999,"nodejs",8888];

console.log(abc);

Function
A callable object that can perform operations.

    function abc(){

        console.log("this is node js function");

    }

    abc();