Aug 15, 2026· 5 min read
The children Prop in React: Composition with Real Examples
The children prop holds the JSX placed between a component's tags. Learn how to use the children prop in React for composition, with real examples.
React
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Aug 15, 2026· 5 min read
Lifting State Up in React: A Step-by-Step Example
Lifting state up moves shared state to a common parent. Follow a step-by-step example to share one value between two React components.
React
Aug 15, 2026· 5 min read
How to Control a Child Component from Its Parent in React
A parent controls a child component by owning its value and passing it down as props. Learn the controlled component pattern in React.
React
Aug 15, 2026· 5 min read
How to Set Default Prop Values in React
Set default prop values in React by assigning them during destructuring. Learn when defaults apply and when they do not.
React
Aug 15, 2026· 5 min read
Component Composition vs Inheritance in React
React reuses components through composition, not inheritance. Learn how props and children replace class hierarchies in React.
React
Aug 15, 2026· 5 min read
How to Reuse React Components with Props and Composition
Reuse React components by passing props and composing them with children. Learn how one definition can render in many places.
React
Aug 15, 2026· 5 min read
Why Your React Component Re-renders and How to Trace It
A component re-renders when its state changes or a parent re-renders. Learn the causes and trace them with the React DevTools Profiler.
React
Aug 15, 2026· 5 min read
How to Type React Props with TypeScript
Type React props with an interface or type alias. Learn inline types, optional props, and union types for TypeScript components.
React
Aug 15, 2026· 5 min read
How to Type the children Prop in React
Type the children prop with ReactNode for any JSX content or ReactElement for elements only. Learn the difference and the limits.
React
Aug 15, 2026· 5 min read
React.ComponentProps Explained: Reuse Existing Component Types
React.ComponentProps extracts the props type of an element or component. Learn to reuse and extend existing prop types instead of rewriting them.
React
Aug 15, 2026· 5 min read
How to Build Polymorphic React Components with TypeScript
Build polymorphic React components that render as any element with an as prop. Type the pattern with ElementType and generics in TypeScript.
React
Aug 15, 2026· 6 min read
How to Update Context Values from Child Components
Keep context state in a provider component and pass the value with its setter, so child components can read and update shared state.
React