# mergeForm

# Function: mergeForm()

```ts
function mergeForm<TFormData, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>(baseForm, state): FormApi<TFormData, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>;
```

Defined in: [packages/form-core/src/mergeForm.ts:77](https://github.com/TanStack/form/blob/main/packages/form-core/src/mergeForm.ts#L77)

## Type Parameters

### TFormData

`TFormData`

### TOnMount

`TOnMount` *extends* `FormValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnChange

`TOnChange` *extends* `FormValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnChangeAsync

`TOnChangeAsync` *extends* `FormAsyncValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnBlur

`TOnBlur` *extends* `FormValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnBlurAsync

`TOnBlurAsync` *extends* `FormAsyncValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnSubmit

`TOnSubmit` *extends* `FormValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnSubmitAsync

`TOnSubmitAsync` *extends* `FormAsyncValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnDynamic

`TOnDynamic` *extends* `FormValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnDynamicAsync

`TOnDynamicAsync` *extends* `FormAsyncValidateOrFn`\<`TFormData`\> \| `undefined`

### TOnServer

`TOnServer` *extends* `FormAsyncValidateOrFn`\<`TFormData`\> \| `undefined`

### TSubmitMeta

`TSubmitMeta` = `never`

## Parameters

### baseForm

[`FormApi`](../classes/FormApi.md)\<`TFormData`, `TOnMount`, `TOnChange`, `TOnChangeAsync`, `TOnBlur`, `TOnBlurAsync`, `TOnSubmit`, `TOnSubmitAsync`, `TOnDynamic`, `TOnDynamicAsync`, `TOnServer`, `TSubmitMeta`\>

### state

`Partial`\<[`FormApi`](../classes/FormApi.md)\<`TFormData`, `TOnMount`, `TOnChange`, `TOnChangeAsync`, `TOnBlur`, `TOnBlurAsync`, `TOnSubmit`, `TOnSubmitAsync`, `TOnDynamic`, `TOnDynamicAsync`, `TOnServer`, `TSubmitMeta`\>\[`"state"`\]\>

## Returns

[`FormApi`](../classes/FormApi.md)\<`TFormData`, `TOnMount`, `TOnChange`, `TOnChangeAsync`, `TOnBlur`, `TOnBlurAsync`, `TOnSubmit`, `TOnSubmitAsync`, `TOnDynamic`, `TOnDynamicAsync`, `TOnServer`, `TSubmitMeta`\>