Logical AND rendering in React - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to render the message only if show is true.

React

return (
  <div>
    {show [1] <p>Hello!</p>}
  </div>
);

Drag options to blanks, or click blank then click option'

A|

B||

C?

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using || will render the right side even if the condition is false.

Using ? is for ternary expressions, not simple AND rendering.

The logical AND operator (&&) renders the right side only if the left side is true.

2fill in blank

medium

Complete the code to render Loading... only when isLoading is true.

React

return (
  <div>
    {isLoading [1] <span>Loading...</span>}
  </div>
);

Drag options to blanks, or click blank then click option'

A||

B!

C&&

D?

Attempts:

3 left

💡 Hint

Common Mistakes

Using || will show the content even if isLoading is false.

Using ! negates the condition, which is not what we want here.

Using && ensures Loading... shows only when isLoading is true.

3fill in blank

hard

Fix the error in the code to render Welcome back! only if isLoggedIn is true.

React

return (
  <div>
    {isLoggedIn [1] <p>Welcome back!</p>}
  </div>
);

Drag options to blanks, or click blank then click option'

A&&

B||

C?

D|

Attempts:

3 left

💡 Hint

Common Mistakes

Using || causes the message to always render.

Using | is a bitwise operator and causes errors.

Logical AND (&&) correctly renders the message only when isLoggedIn is true.

4fill in blank

hard

Fill both blanks to render Admin Panel only if isAdmin is true and isLoggedIn is true.

React

return (
  <div>
    {isAdmin [1] isLoggedIn [2] <h1>Admin Panel</h1>}
  </div>
);

Drag options to blanks, or click blank then click option'

A&&

B||

C?

D!

Attempts:

3 left

💡 Hint

Common Mistakes

Using || would show the panel if either condition is true.

Using ? is for ternary expressions, not chaining conditions.

Using && between both conditions ensures the panel shows only if both are true.

5fill in blank

hard

Fill all three blanks to render Special Offer only if isMember is true, hasCoupon is true, and isLoggedIn is true.

React

return (
  <div>
    {isMember [1] hasCoupon [2] isLoggedIn [3] <div>Special Offer</div>}
  </div>
);

Drag options to blanks, or click blank then click option'

A||

B&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using || would show the offer if any condition is true.

Mixing operators causes unexpected rendering.

All three conditions must be true, so use && between each condition.