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.
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JavaScript If else statement

 JavaScript If..else statement


JavaScript If else statement


What is the JavaScript If else statement.

 1] When the given condition is true, a block of code is executed by the JavaScript if...else statement. 
2] The else block will be Execute in the event that the condition is false. 
3] A program's execution flow may be managed using the if-else statements depending on path.
4] There may be times when you have to choose one path from a list while building a software.
5]  In these situations, you must utilize conditional statements to enable your program to decide what to do and how to do it.

JavaScript If..else statement



Syntax :-


if (expression)
{
//statement evaluated  if condition True
}
else
{
statement evaluated if condition False
}


JavaScript If..else statement

Flowchart :-


JavaScript If..else statement





Q.JavaScript If ..else Statement  check student result.

Example :-


let marks= 90;
if(marks<=95)
{
    console.log("student pass");
}
else
{
    console.log("student failed");
}

Output :-
JavaScript If..else statement



Q.JavaScript If ..else Statement  Even or odd number.

Example :-


let x= 90;
if(x%2==0)
{
    console.log("Even number");
}
else
{
    console.log("odd number");
}

 

Output :-

JavaScript If..else statement

3 Q.JavaScript If ..else Statement  check student eligible for voting or not .

Example :-


let student_age= 21;
if(student_age>=18)
{
    console.log("student Eligible
for voting ");
}
else
{
    console.log("student not Eligible
for voting");
}

Output :-

JavaScript If..else statement


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