TanStack Form v0

Framework

Version

Menu

Getting Started

Installationcore

Quick Startreact

Guides

Basic Conceptsreact

Form Validationreact

Async Initial Valuesreact

Linked Fieldsreact

UI Librariesreact

React Nativereact

SSR/TanStack Start/Next.jsreact

API Reference

JavaScript Referencecore

Classes / FieldApicore

Classes / FormApicore

Functions / formOptionscore

Functions / mergeFormcore

Interfaces / FieldApiOptionscore

Interfaces / FieldOptionscore

Interfaces / FieldValidatorscore

Interfaces / FormOptionscore

Interfaces / FormValidatorscore

Types / DeepKeyscore

Types / DeepValuecore

Types / FieldInfocore

Types / FieldMetacore

Types / FieldStatecore

Types / FormStatecore

Types / Updatercore

Types / UpdaterFncore

Types / ValidationErrorcore

Types / ValidationMetacore

React Referencereact

Functions / createServerValidatereact

Functions / Fieldreact

Functions / useFieldreact

Functions / useFormreact

Functions / useTransformreact

Types / FieldComponentreact

Types / UseFieldreact

Examples

TanStack Query Integrationreact

TanStack Startreact

Next Server Actionsreact

UI Librariesreact

Field Errors From Form Validatorsreact

TanStack Form v0

Framework

Version

Menu

Getting Started

Installationcore

Quick Startreact

Guides

Basic Conceptsreact

Form Validationreact

Async Initial Valuesreact

Linked Fieldsreact

UI Librariesreact

React Nativereact

SSR/TanStack Start/Next.jsreact

API Reference

JavaScript Referencecore

Classes / FieldApicore

Classes / FormApicore

Functions / formOptionscore

Functions / mergeFormcore

Interfaces / FieldApiOptionscore

Interfaces / FieldOptionscore

Interfaces / FieldValidatorscore

Interfaces / FormOptionscore

Interfaces / FormValidatorscore

Types / DeepKeyscore

Types / DeepValuecore

Types / FieldInfocore

Types / FieldMetacore

Types / FieldStatecore

Types / FormStatecore

Types / Updatercore

Types / UpdaterFncore

Types / ValidationErrorcore

Types / ValidationMetacore

React Referencereact

Functions / createServerValidatereact

Functions / Fieldreact

Functions / useFieldreact

Functions / useFormreact

Functions / useTransformreact

Types / FieldComponentreact

Types / UseFieldreact

Examples

TanStack Query Integrationreact

TanStack Startreact

Next Server Actionsreact

UI Librariesreact

Field Errors From Form Validatorsreact

mergeForm

Function: mergeForm()

ts

function mergeForm<TFormData, TFormValidator>(baseForm, state): FormApi<NoInfer<TFormData>, NoInfer<TFormValidator>>

Type Parameters

• TFormData

• TFormValidator extends undefined | Validator<TFormData, unknown> = undefined

Parameters

• baseForm: FormApi<NoInfer<TFormData>, NoInfer<TFormValidator>>

• state: Partial<FormState<TFormData>>

Returns

FormApi<NoInfer<TFormData>, NoInfer<TFormValidator>>

Defined in

packages/form-core/src/mergeForm.ts:36

Functions / formOptions

Interfaces / FieldApiOptions

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