DATATYPES:-

Every variable we declare in our js code has data types that tell us what kind of datatypes are stored in variables. There are two types of Datatypes:-Primitive datatypes and Non Primitive datatypes. so In this article mainly we are going to cover primitive and nonprimitive data types:

Primitive Datatypes:-

The predefined datatypes that provided by the javascript language. It is also called in-built data types.

1. Number:-Number datatype in javascript can be used to hold values as well as decimal values.

   we can declare a variable with x that has a number value of 5 and then try to print the number.

<script>
    let x=5
    let y=6.5
    console.log(`the value of ${x}`)
    console.log(`the value of ${y}`)
</script>

output:-

1. String:-The string Datatypes in the javascript are the character that is between the single or double quotes.

   Let us declare a variable as a article equal to using double or single quotes we declare the value of article as "welcome to my article"

   <script>
       let article="welcome to my article"
   
       console.log(`thanku for choosing us , ${article}`)
   
   </script>
   

   output:-

   

3.Boolean:-The Boolean datatypes in javascript store in variables in the form of either True or False.

<script>
    let article="welcome to my article"
    let value=true

    console.log(`the value of my article is , ${value}`)

</script>

output:-

the value of my article is, true

Undefined:-The undefined datatypes in javascript gives it value when we are not assign any value to variables.

<script>
          let x;

    console.log(`the value of x is , ${x}`)

</script>

output:-

5.Null:-Null datatype of javascript can hold only null value to its variables.

<script>
          let x=null

    console.log(`the value of x is , ${x}`)

</script>

Non Primitive Datatypes:-

Nonprimitive datatypes are derived from primitive datatypes.It can be used to store more than one value in a single variable.

let's talk about some examples. most common are Array and Object

Array:-Array is a datatype that store more than one number or value in a single variable. we use a square bracket to assign value to it.

In an array also the concept of index value where we can count our multiple values, Starting with zero till the last index.

<script>
          let x=[5,6,7,8,9]
          let y=["monika","satyam","sanjna"]

    console.log(x)
    console.log(y)

</script>

output:-

Object:-Object is a datatype that has a collection of many properties that are associated between a key and a value pair. A function is also an Object but in terms of object, it is called the method and is declared like a function in an Object.

It is used by curly braces.

<script>
          let bankaccount={
            accNO:1234567899,
            name: "monika",
            Lastname: "singh",
             branch: "Patna"
           }
            console.log(bankaccount)

</script>

output:-

Difference between primitive and nonprimitive datatypes:-

That's end here for more knowledge please visit mdn official website mdn

Thanku so much..

Happy learning!