Rendering ReactBootstrap Components as Custom Elements

Rendering ReactBootstrap Components as Custom Elements

You need a ReactBootstrap Button to behave like a navigation link, or a Nav.Link to submit a form, but you do not want to duplicate Bootstrap styles or switch to raw HTML. The usual workaround—wrapping a component in an anchor or adding manual classes—creates mismatched markup and harder maintenance.

Thesis: ReactBootstrap's as prop lets you render any supported component as a different HTML element or React component while keeping its props, styling, and behavior intact.

When the Default Element Is Not Enough

ReactBootstrap components map to specific HTML elements by default. A Button renders a button tag, and a Nav.Link renders an a tag. If your design calls for a styled button that navigates to another route, using Button alone loses the anchor semantics, while using raw a loses Bootstrap button styles.

Using the as Prop

The as prop accepts a string for a native HTML element or a component reference for a custom React component. ReactBootstrap forwards the component's usual props—such as variant, size, and event handlers—to the rendered element.

Worked Example: Button Rendered as an Anchor

Run this in a React project that already has ReactBootstrap and Bootstrap CSS installed:

<Button as="a" href="/settings" variant="primary" target="_blank">
  Open Settings
</Button>

The DOM output is an anchor tag with Bootstrap button classes, not a button tag. Clicking it navigates to /settings while retaining the primary button appearance.

You can also pass a custom component:

<Button as={RouterLink} to="/settings" variant="outline-secondary">
  Go to Settings
</Button>

Here RouterLink is a placeholder for your routing library's link component. ReactBootstrap applies its button styling to whatever element RouterLink renders.

Trade-off and Limitation

The as prop does not automatically forward refs in every ReactBootstrap version, and TypeScript inference can be loose when the target element changes the expected prop set. Event handlers such as onClick still work, but you should verify focus management and keyboard accessibility when rendering a button as a link or vice versa.

Verification

1. Install ReactBootstrap and import the Bootstrap CSS file in your entry point.
2. Render the component with as and inspect the DOM using browser developer tools.
3. Confirm the rendered tag matches the as value and that Bootstrap classes are present.

If you installed packages to try this, you can remove them with npm uninstall react-bootstrap bootstrap as a rollback.

Use as when the element's semantics matter more than its default tag, but keep accessibility and ref handling in mind for interactive components.