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 Logical Operators Explained with Examples

 
JavaScript Logical Operators Explained with Examples


  Logical Operator

  1]  logical and (&&)

  2] logical or ( | | )

  3]  logical ( ! )

Logical Operator 
Example :-

Logical Operator

 Logical Operator

  1]  logical and (&&)

Example :-

//True and False value = False
 let s =true;
 let t=false;
  let result= s && t;
  console.log(result);

  // True and True value = True
  let u = true;
  let v= true;
  let result1= u&&v;
  console.log(result1);
  //False and True value = False
  let w=false;
  let x=true;
  let result2= w && x;
  console.log(result2);

  //False and False value = False
  let y=false;
  let z=false;
  let result3=y &&z;
  console.log(result3);

Output:-

logical and (&&)


  2] logical or ( | | ) 
Example :-

//True and False value = True
 let s =true;
 let t=false;
  let result= s || t;
  console.log(result);

  // True and True value = True
  let u = true;
  let v= true;
  let result1= u||v;
  console.log(result1);
  //False and True value = True
  let w=false;
  let x=true;
  let result2= w || x;
  console.log(result2);

  //False and False value = False
  let y=false;
  let z=false;
  let result3=y ||z;
  console.log(result3);

Output:-

logical or ( | | )


  3]  logical ( ! )

Example :-


// value not true = false
let q=true;
let result =!q;
console.log(result);
// value not false = true
 let a= false;
 let result2=!a;
 console.log(result2);

Output:-



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