Conditional Rendering in React Complete Guide with Examples 2026

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  Conditional Rendering in React Conditional Rendering is one of the most useful concepts in React. It means showing different content on the screen depending on a condition. For example: If a user is logged in → show Logout If a user is not logged in → show Login If a student has passed → show Congratulations If a product is available → show Buy Now If data is loading → show Loading... React does not have a separate if rendering tag. Instead, we use normal JavaScript conditions such as if, the ternary operator, &&, and switch to decide what should appear in the UI.

JavaScript operators

             
JavaScript operators



     JavaScript Operators   

1] Arithmetic Operators 

2]  Assignment Operators

3] Comparison Operators   

4] String Operators   

5]  Logical Operators

6] Bitwise Operators

7] Ternary Operators


1] Arithmetic Operators JavaScript 

    1] Addition (+)

    2]  Subtraction (-)

    3] Multiplication  (*)

    4] Exponentiation (**)

    5] Division  (/)

    6]  Modulus   (%)

    7]   Increment  (++)

     8]  Decrement (--)

  

         Example :-

  

Operators

 Name

Example

Result

 

      +

 

Addition

 

 6+2

 

8

      

      -

 

Subtraction

 

6 - 2

 

4

 

      *

 

Multiplication

 

6 * 2

 

12

   

     ** 

 

Exponentiation

 

2 **3

 

8

 

      /

 

Division

 

6 / 2

 

3

    

     %

 

Modulus

 

7 % 3

 

1

  

    ++    

 

Increment

 

 6 ++

 

7

 

     _ _

 

 

Decrement

 

6 - -

 

5


2]  Assignment Operators JavaScript

   1]  Assignment (=)

    2]   Addition Assignment (+ = )

    3]  Subtraction Assignment (- =)

    4] Multiplication Assignment (* =)

    5] Division Assignment (/ =)

    6] Remainder Assignment  (% =)


    Example :-

Assignment operators



3] Comparison Operators JavaScript   

    1] Equal  to  (==)

   2]  Equal value and equal type (= = =)

   3] Not equal (! =)

   4] Not equal value or not equal type (! = =)

   5] Greater than ( > )

   6] less than (< )

   7] Greater than or equal to (> = )

   8] less than or equal to (< =)

 Example :-

Comparison Operators

4] String Comparison  

 String  comparison operators use compare two strings to determine

 Relative equality 

   1]  Equality (= =)

   2] Inequality ( ! =)

    3] Greater than ( > )

    4] Greater than or equal to (>= ) 

    5]  Less than (< )

    6] Less than  or equal to ( <= )

   Example :-

String Comparison

5]  Logical Operator JavaScript

  1]  logical and (&&)

  2] logical or ( | | ) 

  3]  logical ( ! )

Logical Operator 

Example :-

Logical Operator


6] Bitwise Operators

1]  AND  ( & )

2] OR ( | )

3] NOT ( ~ )

4] XOR ( ^)

5] left  shift ( << )

6] right shift ( >>)

Bitwise Operators

Example :-

Bitwise Operators Example :


7] Ternary Operators

 1] condition 

 2] expression_if_true

  3] expression_if_false 


Syntax  :=

  condition  ? expression_if_true : expression_if_false

Example :-


let age =18;
let message;
if(age>=18){
    message="you can vote Yes";
}
else{
    message="you can't vote No ";
}
 console.log(message);

Output :- 




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