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36/15/20255 min read
TypeScript Best Practices for React Developers
Essential TypeScript patterns and best practices for React development.
J
John Doe
Published 6/15/2025
# TypeScript Best Practices for React Developers
TypeScript brings type safety to JavaScript, making your React applications more robust and maintainable. Here are the best practices every React developer should know.
## Setting Up TypeScript with React
Start with a TypeScript React project:
```bash
npx create-react-app my-app --template typescript
```
## Component Props Typing
Always define interfaces for your component props:
```typescript
interface ButtonProps {
variant: 'primary' | 'secondary';
onClick: () => void;
children: React.ReactNode;
disabled?: boolean;
}
const Button: React.FC<ButtonProps> = ({
variant,
onClick,
children,
disabled = false
}) => {
return (
<button
className={`btn btn-${variant}`}
onClick={onClick}
disabled={disabled}
>
{children}
</button>
);
};
```
## State Typing with useState
Be explicit about state types:
```typescript
const [user, setUser] = useState<User | null>(null);
const [loading, setLoading] = useState<boolean>(false);
```
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J
John Doe
Content creator and developer
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