React / JSX Dynamic Component Name

javascript

react-component

jsx-dynamic-rendering

react-lazy

byAlex Kataev·Mar 4, 2025

Here's the magic potion: Create a JavaScript object mapping for React dynamic components. The object keys should represent component names, and values should point to the actual components. Use these keys to reference and dynamically render components via React's JSX.

const Components = {
  Header: HeaderComponent, // Header of Champions
  Footer: FooterComponent // Footer of Destiny
};

const DynamicComponent = ({ name }) => {
  const SpecificComponent = Components[name] || DefaultComponent; // Dare to default?
  return <SpecificComponent />;
};

// Usage, go get it tiger:
<DynamicComponent name="Header" />

Quick and dirty rule: Capitalize component names to distinguish them from mere HTML elements. They're not just any elements; they're React components!

Unraveling Dynamic Rendering Complexities

Capitalizing variables for Component Names

Always remember to capitalize your variables representing component classes for JSX recognition. Use this capital variable for dynamic rendering. Avoid string concatenation or complex expressions for component naming in JSX.

// Stylish and slick:
const MyComponent = Components.MyComponentName;
return <MyComponent />;

// Avoid (this ain't Las Vegas baby, no flashing lights):
return <Components.MyComponentName />;

Boosting Performance with `React.lazy`

If you're running a sizeable component library, consider using React.lazy for dynamic imports. This tool's got your components loading only when you need them, giving your performance stats a nice little boost.

// Your lazy friend:
const LazyComponent = React.lazy(() => import('./LazyComponent'));

// Kick back and get lazy:
<Suspense fallback={<div>Loading...</div>}>
  <LazyComponent />
</Suspense>

The Art of Component Mapping

Let's kick redundancy to the curb! Organize your components using an ES6 Map instance or similar object. Set keys as your component names and link them to the appropriate class references.

const componentMap = new Map([
  ['ComponentA', ComponentAClass],  // "A" - Quite the eccentric component
  ['ComponentB', ComponentBClass]  // "B" - Always 'B' urself
]);

Souping-up Components with HOCs

Looking for a power boost? Your components can use higher-order components (HOCs) or decorators to dynamically upgrade and enhance themselves while keeping your dynamic rendering logic slim and trim.

const withSpecialLogic = Component => props => {
  // Insert special logic here. Like a logic bomb! 💣
  return <Component {...props} />;
};

const EnhancedComponent = withSpecialLogic(MyDynamicComponent); // MyComponent, but on Red Bull

Consistent Naming: a Prerogative

A dash of consistency keeps your code robust and resilient. Always follow a consistent naming convention for your components. Flip the excessive cognitive load and coding mishaps the bird.

Organizing towards the Optimized Path

File hierarchy matters. Much like your sock drawer, maintaining an organized structure is vital when diving into React.lazy. You wouldn't want to get lost in a jungle of unsorted files, would you?

Dynamic Access via Props

A little context from our friends at React could save you a bunch of time. Embed the component map into your context, and voila! Any component can now render a dynamic component courtesy of your comprehensive component map.

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