Introduction

Last updated 28 days ago

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React Advanced Form

React Advanced Form

React Advanced Form is a library for tailoring real-world forms in React with pleasure and ease.

No boilerplate. No obscure high-order component configurations. No redundant state management. Embrace powerful custom styling, field grouping, advanced multi-layer validation, validation messages with smart fallback system, reactive props resolvers and much more.

Features

  • Changing expectations. Trust and expect a form to do more than just rendering the fields. Our features are designed to handle cumbersome use cases with clean and performant code.

  • Immutable. Each interaction or update is a pure function that produces the next state of a field.

  • Composite fields. React Advanced Form is field-centric. That means you define flexible fields composites and reuse them throughout the entire application. Reflect even the most granular field state changes in the UI to achieve the outmost user experience.

  • Prototyping speed. Build production-ready forms at a speed of a prototype.

// No, this is not a diminished example, this is a completely working form
<Form action={this.registerUser}>
<Input name="username" required />
<Input name="password" type="password" required />
</Form>
export default {
type: {
password: {
capitalLetter: ({ value }) => /[A-Z]/.test(value),
oneNumber: ({ value }) => /[0-9]/.test(value),
},
},
name: {
confirmPassword: ({ get, value }) => {
/**
* The "confirmPassword" field will be re-validated
* whenever the "value" prop of "userPassword" field updates.
*/
return value === get(["userPassword", "value"])
},
},
};

Access the field's value, fieldProps, fields and the form as the parameters of each resolver function. Apply the rules application-wide via FormProvider, or extend/override them for a specific form. Say goodbye to crowded validate functions, welcome clean validation schemas!

  • Reactive props. How much effort would it take you to make one field required based on another field(s)? Yes, the correct answer is—one line of code:

<Input
name="firstName"
required={({ get }) => !!get(['lastName', 'value'])} />
<Input
name="lastName"
required={({ get }) => !!get(['firstName', 'value'])} />

Get as many data from the sibling fields as needed, and build your logic on that. Embrace the power of reactive programming, which re-evaluates a resolver function whenever the referenced field props update.

  • Field grouping. Control the serialized data structure on the layout level by grouping the fields. Take advantage of split and nested groups.

<Input name="companyName" value="Google" />
<Field.Group name="billingAddress">
<Input name="firstName" value="John" />
<Input name="lastName" value="Maverick" />
</Field.Group>
<Checkbox name="termsAndConditions" checked />
<Field.Group name="deliveryAddress">
<Input name="firstName" value="Catheline" />
<Input name="lastName" value="McCoy" />
</Field.Group>

The layout above serializes into the following JSON:

{
"companyName": "Google",
"billingAddress": {
"firstName": "John",
"lastName": "Maverick"
},
"termsAndConditions": true,
"deliveryAddress": {
"firstName": "Catheline",
"lastName": "McCoy"
}
}
  • Third-party fields integration. React Advanced Form can be used with any third-party fields library by using powerful createField API.

Getting started

Install

npm install react-advanced-form --save

Make sure to have React (15.0+) installed in your project.

Guidelines

Starting with something new may appear challenging. There is a step-by-step instructions on how to get started with React Advanced Form, which ensure easy and clear integration process.

Resources

Browser support

Chrome

Firefox

Safari

iOS Safari

Edge

Internet Explorer

65+

57+

9+

8+

41+

There is no official support for Internet Explorer. There is no testing conducted for that browser. Consider educating the web and deprecating support for obsolete browsers.

Live examples

Contributing

Any of your contributions are highly appreciated. See the Contribution guidelines to get to know the process better. Moreover, development isn't the only way to contribute, there are many more.