![]() Introduces a whole-record validation function and demonstrates how to displayerrors next to fields using child render functions. Uses the built-in React inputs: input, select, and textarea to build aform with no validation. render?: (props: FormSpyRenderProps) => React.Node.children?: ((props: FormSpyRenderProps) => React.Node) | React.Node.change: (name: string, value: any) => void.validate?: (values: Object) => Object | Promise.render?: (props: FormRenderProps) => React.Node.onSubmit: (values: Object, callback: ?(errors: ?Object) => void) => ?Object | Promise | void.children?: ((props: FormRenderProps) => React.Node) | React.Node.input.onFocus: (?SyntheticFocusEvent) => void.input.onChange: (SyntheticInputEvent | any) => void.input.onBlur: (?SyntheticFocusEvent) => void.validate?: (value: ?any, allValues: Object) => ?any.render?: (props: FieldRenderProps) => React.Node.children?: ((props: FieldRenderProps) => React.Node) | React.Node. ![]() □ Performance Optimization Through Subscriptions □.Hybrid Synchronous/Asynchronous Record-Level Validation.You can think of it a little like GraphQL's feature of only fetching the datayour component needs to render, and nothing else. ![]() Bydefault, □ React Final Form subscribes to all changes, but if you want tofine tune your form to optimized blazing-fast perfection, you may specify onlythe form state that you care about for rendering your gorgeous UI. □ React Final Form is a thin React wrapper for □ Final Form, which is asubscriptions-based form state management library that uses the Observer pattern, so only thecomponents that need updating are re-rendered as the form's state changes. ✅ Opt-in subscriptions - only update on the state you need!īashnpm install -save react-final-form final-formīashyarn add react-final-form final-form Getting Started ✅ Only peer dependencies: React and □ Final Form □ High performance subscription-based form state management for React
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