TanStack Form 是处理 Web 应用程序中表单的终极解决方案，它提供了一种强大而灵活的方法来管理表单。凭借一流的 TypeScript 支持、headless UI 组件和框架无关的设计，它简化了表单处理，并确保在各种前端框架中实现无缝体验。
大多数 Web 框架没有为表单处理提供全面的解决方案，导致开发人员需要创建自己的自定义实现或依赖功能较弱的库。这通常会导致缺乏一致性、性能不佳和开发时间增加。TanStack Form 旨在通过提供一个强大且易于使用的表单管理一体化解决方案来应对这些挑战。
使用 TanStack Form，开发者可以轻松应对常见的表单相关挑战，例如
通过为这些挑战提供完整的解决方案，TanStack Form 使开发人员能够轻松构建健壮且用户友好的表单。
在下面的示例中，你可以看到 TanStack Form 在 React 框架适配器中的实际应用
import * as React from 'react'
import { createRoot } from 'react-dom/client'
import { useForm } from '@tanstack/react-form'
import type { AnyFieldApi } from '@tanstack/react-form'
function FieldInfo({ field }: { field: AnyFieldApi }) {
return (
<>
{field.state.meta.isTouched && field.state.meta.errors.length ? (
<em>{field.state.meta.errors.join(', ')}</em>
) : null}
{field.state.meta.isValidating ? 'Validating...' : null}
</>
)
}
export default function App() {
const form = useForm({
defaultValues: {
firstName: '',
lastName: '',
},
onSubmit: async ({ value }) => {
// Do something with form data
console.log(value)
},
})
return (
<div>
<h1>Simple Form Example</h1>
<form
onSubmit={(e) => {
e.preventDefault()
e.stopPropagation()
form.handleSubmit()
}}
>
<div>
{/* A type-safe field component*/}
<form.Field
name="firstName"
validators={{
onChange: ({ value }) =>
!value
? 'A first name is required'
: value.length < 3
? 'First name must be at least 3 characters'
: undefined,
onChangeAsyncDebounceMs: 500,
onChangeAsync: async ({ value }) => {
await new Promise((resolve) => setTimeout(resolve, 1000))
return (
value.includes('error') && 'No "error" allowed in first name'
)
},
}}
children={(field) => {
// Avoid hasty abstractions. Render props are great!
return (
<>
<label htmlFor={field.name}>First Name:</label>
<input
id={field.name}
name={field.name}
value={field.state.value}
onBlur={field.handleBlur}
onChange={(e) => field.handleChange(e.target.value)}
/>
<FieldInfo field={field} />
</>
)
}}
/>
</div>
<div>
<form.Field
name="lastName"
children={(field) => (
<>
<label htmlFor={field.name}>Last Name:</label>
<input
id={field.name}
name={field.name}
value={field.state.value}
onBlur={field.handleBlur}
onChange={(e) => field.handleChange(e.target.value)}
/>
<FieldInfo field={field} />
</>
)}
/>
</div>
<form.Subscribe
selector={(state) => [state.canSubmit, state.isSubmitting]}
children={([canSubmit, isSubmitting]) => (
<button type="submit" disabled={!canSubmit}>
{isSubmitting ? '...' : 'Submit'}
</button>
)}
/>
</form>
</div>
)
}
const rootElement = document.getElementById('root')!
createRoot(rootElement).render(<App />)
import * as React from 'react'
import { createRoot } from 'react-dom/client'
import { useForm } from '@tanstack/react-form'
import type { AnyFieldApi } from '@tanstack/react-form'
function FieldInfo({ field }: { field: AnyFieldApi }) {
return (
<>
{field.state.meta.isTouched && field.state.meta.errors.length ? (
<em>{field.state.meta.errors.join(', ')}</em>
) : null}
{field.state.meta.isValidating ? 'Validating...' : null}
</>
)
}
export default function App() {
const form = useForm({
defaultValues: {
firstName: '',
lastName: '',
},
onSubmit: async ({ value }) => {
// Do something with form data
console.log(value)
},
})
return (
<div>
<h1>Simple Form Example</h1>
<form
onSubmit={(e) => {
e.preventDefault()
e.stopPropagation()
form.handleSubmit()
}}
>
<div>
{/* A type-safe field component*/}
<form.Field
name="firstName"
validators={{
onChange: ({ value }) =>
!value
? 'A first name is required'
: value.length < 3
? 'First name must be at least 3 characters'
: undefined,
onChangeAsyncDebounceMs: 500,
onChangeAsync: async ({ value }) => {
await new Promise((resolve) => setTimeout(resolve, 1000))
return (
value.includes('error') && 'No "error" allowed in first name'
)
},
}}
children={(field) => {
// Avoid hasty abstractions. Render props are great!
return (
<>
<label htmlFor={field.name}>First Name:</label>
<input
id={field.name}
name={field.name}
value={field.state.value}
onBlur={field.handleBlur}
onChange={(e) => field.handleChange(e.target.value)}
/>
<FieldInfo field={field} />
</>
)
}}
/>
</div>
<div>
<form.Field
name="lastName"
children={(field) => (
<>
<label htmlFor={field.name}>Last Name:</label>
<input
id={field.name}
name={field.name}
value={field.state.value}
onBlur={field.handleBlur}
onChange={(e) => field.handleChange(e.target.value)}
/>
<FieldInfo field={field} />
</>
)}
/>
</div>
<form.Subscribe
selector={(state) => [state.canSubmit, state.isSubmitting]}
children={([canSubmit, isSubmitting]) => (
<button type="submit" disabled={!canSubmit}>
{isSubmitting ? '...' : 'Submit'}
</button>
)}
/>
</form>
</div>
)
}
const rootElement = document.getElementById('root')!
createRoot(rootElement).render(<App />)
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