React Conditional Rendering — Free React Tutorial
Learn React Conditional Rendering in React with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
TL;DR: Learn React Conditional Rendering in React with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
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React Conditional Rendering in React
Conditional rendering in React means showing different UI based on a condition. The most common approach is using JavaScript conditional operators like `if/else`, ternary operators `?:`, or logical `&&`. In JSX, you can't use `if` statements directly (JSX is an expression, not a statement), but you can use them in your component logic before the return statement. Use conditional expressions inside JSX: `{condition ? <ComponentA /> : <ComponentB />}`.
The ternary operator `condition ? ifTrue : ifFalse` is perfect for choosing between two options. For showing or hiding a single element, use the logical AND operator: `{condition && <Component />}`. This works because if the left side is falsy, JavaScript short-circuits and doesn't render anything. Never return `false`, `null`, or `undefined` from JSX — React treats these as empty and renders nothing.
Plan your conditional logic before writing JSX. If conditions are complex, extract them into helper variables or separate components for clarity. Avoid deeply nested conditionals in JSX; instead, create smaller, reusable components that each handle their own rendering logic.
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