# Links

- Page: https://jiguang132.com/resources/material-ui/docs/links
- Resource: Material UI (https://jiguang132.com/resources/material-ui.md)
- All guides: https://jiguang132.com/resources/material-ui/docs.md

Navigate with native semantic anchors and theme-aware underline styling.

This guide covers Material UI Core with the default Emotion engine; extensions and additional demos are explicitly classified.

## Use case and business boundary

Navigation links require real destinations; buttons are for actions and framework routing needs a compatible adapter.

## Native composition and scope

`Link`

Preserve native Material UI composition and types; do not substitute JGuang UI/Base UI/Radix APIs. Example entries are not extra components.

## Native installation and initialization

```bash
npm install @mui/material@9.4.0 @emotion/react@11.14.0 @emotion/styled@11.14.1
```

Use native npm and Emotion, not an invented JGuang UI Registry URL. Place examples inside native ThemeProvider; choose CssBaseline or ScopedCssBaseline for the project. Inspect React, existing providers, lockfile and SSR first. Never overwrite files or conceal peer conflicts. This batch verified React 19.2.8; React 18 and below require matching react-is. See the included bilingual setup guide.

## Practical native parameters

These selected parameters are not a flattened universal API. Preserve the native declaring owner, slot structure, nullable values and generics.

| Owner.prop | Practical role | Declaration source |
| --- | --- | --- |
| `Link.href` | Real anchor destination; actions should use button semantics. | `React.AnchorHTMLAttributes` |
| `Link.underline` | Native Link underline policy: always, hover or none. | `Link` |
| `Link.component` | Rendered native element/component type; preserve valid semantics and refs. | `Link` |

## Runnable native examples

Machine keys select example entries, not universal variant props. Native demo JSX/data stay unchanged; JGuang-authored acceptance fixtures are explicitly labelled.

- Basic links · `Links` · upstream native demo
- Underline · `UnderlineLink` · upstream native demo
- Accessibility · `ButtonLink` · upstream native demo

## Actual usage example

Unmodified pinned native demo; copy its required local helper files together.

```tsx
import * as React from 'react';
import Box from '@mui/material/Box';
import Link from '@mui/material/Link';

const preventDefault = (event: React.SyntheticEvent) => event.preventDefault();

export default function Links() {
  return (
    <Box
      sx={{
        typography: 'body1',
        '& > :not(style) ~ :not(style)': {
          ml: 2,
        },
      }}
      onClick={preventDefault}
    >
      <Link href="#">Link</Link>
      <Link href="#" color="inherit">
        {'color="inherit"'}
      </Link>
      <Link href="#" variant="body2">
        {'variant="body2"'}
      </Link>
    </Box>
  );
}

```

## Example dependency boundaries

`react`, `@mui/material/Box`, `@mui/material/Link`

Direct Icons/System/Utils example imports require their matching 9.4.0 packages. Relative data/helpers are part of the example closure, not extra components. Remote images and simulated operations do not supply a backend.

## Pinned upstream API metadata reference

These tables retain the upstream metadata, not a newly inferred generic type system. Conditional generics, inherited props and callback details are defined by the source declarations below. Theme defaults may override metadata defaults.

### Link

```tsx
import Link from '@mui/material/Link';
import { Link } from '@mui/material';
```

Native inheritance: `Typography`. Parent/DOM props are not fabricated as additional own props.

| Prop | Required | Upstream metadata type / constraint | Metadata default |
| --- | --- | --- | --- |
| `children` | no | `node` | — |
| `classes` | no | `object` | — |
| `color` | no | `'primary' \| 'secondary' \| 'success' \| 'error' \| 'info' \| 'warning' \| 'textPrimary' \| 'textSecondary' \| 'textDisabled' \| string` | `'primary'` |
| `component` | no | `element type` | — |
| `sx` | no | `Array<func \| object \| bool> \| func \| object` | — |
| `TypographyClasses` | no | `object` | — |
| `underline` | no | `'always' \| 'hover' \| 'none'` | `'always'` |
| `variant` | no | `'body1' \| 'body2' \| 'button' \| 'caption' \| 'h1' \| 'h2' \| 'h3' \| 'h4' \| 'h5' \| 'h6' \| 'inherit' \| 'overline' \| 'subtitle1' \| 'subtitle2' \| string` | `'inherit'` |


## Native source declarations

Declarations/imports are extracted from pinned source without flattening unions or external inheritance. Original English comments/types are source reference, not a claim of translated upstream prose. Shared types stay in their native packages.

### vendor/src/Link/Link.d.ts

```ts
import * as React from 'react';

import { DistributiveOmit } from '@mui/types';

import { SxProps } from '@mui/system';

import { OverridableComponent, OverrideProps } from '../OverridableComponent';

import { Theme } from '../styles';

import { TypographyOwnProps } from '../Typography';

import { LinkClasses } from './linkClasses';

export interface LinkOwnProps extends DistributiveOmit<LinkBaseProps, 'classes'> {
  /**
   * The content of the component.
   */
  children?: React.ReactNode;
  /**
   * Override or extend the styles applied to the component.
   */
  classes?: Partial<LinkClasses> | undefined;
  /**
   * The color of the link.
   * @default 'primary'
   */
  color?: TypographyOwnProps['color'] | 'inherit' | undefined;
  /**
   * The system prop that allows defining system overrides as well as additional CSS styles.
   */
  sx?: SxProps<Theme> | undefined;
  /**
   * `classes` prop applied to the [`Typography`](https://mui.com/material-ui/api/typography/) element.
   */
  TypographyClasses?: TypographyOwnProps['classes'] | undefined;
  /**
   * Controls when the link should have an underline.
   * @default 'always'
   */
  underline?: 'none' | 'hover' | 'always' | undefined;
  /**
   * Applies the theme typography styles.
   * @default 'inherit'
   */
  variant?: TypographyOwnProps['variant'] | undefined;
}

export interface LinkTypeMap<AdditionalProps = {}, RootComponent extends React.ElementType = 'a'> {
  props: AdditionalProps & LinkOwnProps;
  defaultComponent: RootComponent;
}

declare const Link: OverridableComponent<LinkTypeMap>;

export type LinkBaseProps = DistributiveOmit<
  TypographyOwnProps,
  'children' | 'color' | 'variant' | 'classes'
>;

export type LinkProps<
  RootComponent extends React.ElementType = LinkTypeMap['defaultComponent'],
  AdditionalProps = {},
> = OverrideProps<LinkTypeMap<AdditionalProps, RootComponent>, RootComponent> & {
  component?: React.ElementType | undefined;
};
```

## Post-install acceptance

Run strict types, production build and real interactions. Check keyboard labels/focus, disabled/error/read-only semantics where natively supported, both themes, narrow screens and reduced motion. Verify callbacks against the real host data; do not declare installation complete from copying a prompt. Initialization fixtures also require server HTML and warning-free hydration.

## Source and license

https://github.com/mui/material-ui/tree/809a7717b4c050ba3f69b75300689f07c050a16e

MIT · @mui/material@9.4.0. Vendor originals and license are preserved. Full original upstream prose remains in vendor/docs and is not represented as fully translated.

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