Conditional Rendering Cheat Sheet

Subject: React

šŸ§© Conditional Rendering Cheat Sheet

šŸ”§ Techniqueāœ… Syntax ExamplešŸ’” Use Case / Notes
if/else (outside JSX)if (isLoggedIn) { return <Home /> } else { return <Login /> }Use when logic is complex or spans multiple lines
Ternary Operator{isLoggedIn ? <Home /> : <Login />}Best for short, inline conditions
Logical &&{user && <p>Welcome, {user.name}!</p>}Render only if condition is true (no else case)
**Logical(fallback)**
Early Returnif (!data) return <p>No data</p>; return <Content />Exit early to avoid rendering rest of the component
Conditional Component{isAdmin ? <AdminPanel /> : <UserPanel />}Switch between two components
Function Call Inside JSX{getStatusMessage()}Useful if rendering logic needs to be encapsulated
Nested Conditions{status === 'loading' ? <Loading /> : status === 'error' ? <Error /> : <Success />}For multiple condition branches (use sparingly)
Dynamic JSX Fragment{show && <><h2>Header</h2><p>Content</p></>}Works with multiple sibling elements

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