Should I extract large conditional JSX into a component?
Yes. If the conditional JSX is large, extracting it into a small component makes both the condition and the rendering clearer. It also makes the conditional part reusable and testable.
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More FAQs in The Best Conditional Rendering Patterns in React
There is no single best; it depends on the case. Use early return to hide, ternary for two-way choices, && for one-way show, if before return for complex logic, switch for multiple cases, and enum objects for state-to-component mapping.
When a component should not render at all based on a condition, return null early. This keeps the main render logic uncluttered instead of wrapping everything in a condition.
When you have a clear two-way choice, render A or render B. A ternary is explicit about both branches. Use && only when you want to show something when true and nothing otherwise.
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