# Default CJS exports

This document will cover all the types of default exports that can be generated by [rollup-plugin-dts](https://github.com/Swatinem/rollup-plugin-dts) plugin.

### Export default without specifier from the module itself

The following example can be found in the [reexport-types](test/fixtures/reexport-types) fixture, check `index.ts` module.

Given the following code:

```ts
// module.ts
export default function foo() {}
```

`rollup-plugin-dts` will generate:

```ts
// module.d.[c]ts
declare function foo(): void

export { foo as default }
```

we need to convert it to:

```ts
// module.d.[c]ts
declare function foo(): void

export = foo
```

### Exporting default from default import

The following example can be found in the [reexport-default](test/fixtures/reexport-default) fixture, check `index.ts` module.

Given the following code:

```ts
// module.ts
import MagicString from 'magic-string'
export default MagicString
```

`rollup-plugin-dts` will generate:

```ts
// module.d.[c]ts
import MagicString from 'magic-string'
export { default } from 'magic-string'
```

we need to convert it to (doesn't require adding the import):

```ts
// module.d.[c]ts
import MagicString from 'magic-string'
export = MagicString
```

### Exporting default with specifier

The following example can be found in the [reexport-types](test/fixtures/reexport-types) fixture, check `all.ts` module.

Given the following code:

```ts
// module.ts
export type * from './index.ts'
export { default } from './index.ts'
```

`rollup-plugin-dts` will generate:

```ts
// module.d.[c]ts
// otherexports and otherexporttypes when present
export { default, otherexports, type otherexporttypes } from './index.js'
```

we need to convert it to (requires adding the import):

```ts
// module.d.[c]ts
import _default from './index.js'
export = _default
// otherexports and otherexporttypes when present
export { otherexports, type otherexporttypes } from './index.js'
```

### Exporting default from named import as default export with specifier

The following example can be found in the [reexport-default](test/fixtures/reexport-default) fixture, check `asdefault.ts` module.

Given the following code:

```ts
// module.ts
import { resolve } from 'pathe'
export default resolve
```

`rollup-plugin-dts` will generate:

```ts
// module.d.[c]ts
import { resolve } from 'pathe'
export { resolve as default } from 'pathe'
```

we need to convert it to (doesn't require adding the import):

```ts
// module.d.[c]ts
import { resolve } from 'pathe'
export = resolve
```

### Exporting named export as default with specifier

The following example can be found in the [reexport-default](test/fixtures/reexport-default) fixture, check `resolveasdefault.ts` module.

Given the following code:

```ts
// module.ts
export { resolve as default } from 'pathe'
```

`rollup-plugin-dts` will generate:

```ts
// module.d.[c]ts
export { resolve as default } from 'pathe'
```

we need to convert it to (requires adding the import):

```ts
// module.d.[c]ts
import { resolve } from 'pathe'
export = resolve
```