{count}
;
}
```
### Twoslash enabled with additional configs
```js something_with_external_packages.tsx icon="js" lines twoslash
import { useEffect, useState } from 'react';
export function Component() {
// ^?
const [count, setCount] = useState(0);
// ^? ^?
useEffect(() => {
setTimeout(() => setCount(count + 1), 1000);
// ^?
}, [count]);
return {count}
;
}
```
## Link support
```js Link Testing icon="js" lines twoslash
import { useEffect, useState } from 'react';
// @link Component
export function Component() {
// ^?
return {count}
;
}
// @link OtherFunction: #hola-there
export function OtherFunction() {
// ^?
return {count}
;
}
// @link ExternalLink: https://google.com
export function ExternalLink() {
// ^?
const str =
"Don't worry, only hover targets with ExternalLink will be affected, not random strings";
return {count}
;
}
```
```ts twoslash
type PermissionResult =
| {
behavior: 'allow';
updatedInput: ToolInput;
updatedPermissions?: PermissionUpdate[];
}
| {
behavior: 'deny';
message: string;
interrupt?: boolean;
};
type ToolInput = string[];
type PermissionUpdate = {
name: string;
permission: Array{String(mdxSource.frontmatter.title)}
Mint
Open source docs builder that's beautiful, fast, and easy to work with.
 [](https://twitter.com/intent/tweet?url=&text=Check%20out%20%40mintlify)
Built with ❤︎ by Mintlify