āœØ Introducing react-cool-form: React hooks for forms state and validation, less code more performant

wellyshen

Welly

Posted on January 9, 2021

āœØ Introducing react-cool-form: React hooks for forms state and validation, less code more performant

Building forms in React might be a challenge. We have to face many tedious things like form data, validation, submission, and more šŸ¤Æ.

As a React developer, there're two strategies for implementing forms, the controlled components and uncontrolled components, each has its advantages and timing of use. The controlled components serve form state as the single source of truth. However, the uncontrolled components make our code more concise and performant.

React Cool Form combines these advantages and references the UX research of Nielsen Norman Group as the basis for our API design to help you conquer all kinds of forms šŸ‘ŠšŸ».

Demo

Features

Quick Start

To use React Cool Form, you must use react@16.8.0 or greater which includes hooks. This package is distributed via npm.

$ yarn add react-cool-form
# or
$ npm install --save react-cool-form
Enter fullscreen mode Exit fullscreen mode

Here's the basic concept of how it rocks:

Edit RCF - Quick start

import { useForm } from "react-cool-form";

const Field = ({ label, id, error, ...rest }) => (
  <div>
    <label htmlFor={id}>{label}</label>
    <input id={id} {...rest} />
    {error && <p>{error}</p>}
  </div>
);

const App = () => {
  const { form, mon } = useForm({
    // (Strongly advise) Provide the default values just like we use React state
    defaultValues: { username: "", email: "", password: "" },
    // The event only triggered when the form is valid
    onSubmit: (values) => console.log("onSubmit: ", values),
  });
  // We can enable the "errorWithTouched" option to filter the error of an un-blurred field
  // Which helps the user focus on typing without being annoyed by the error message
  const errors = mon("errors", { errorWithTouched: true }); // Default is "false"

  return (
    <form ref={form} noValidate>
      <Field
        label="Username"
        id="username"
        name="username"
        // Support built-in validation
        required
        error={errors.username}
      />
      <Field
        label="Email"
        id="email"
        name="email"
        type="email"
        required
        error={errors.email}
      />
      <Field
        label="Password"
        id="password"
        name="password"
        type="password"
        required
        minLength={6}
        error={errors.password}
      />
      <input type="submit" />
    </form>
  );
};
Enter fullscreen mode Exit fullscreen mode

āœØ Pretty easy right? React Cool Form is more powerful than you think. Let's explore it!

šŸ’– šŸ’Ŗ šŸ™… šŸš©
wellyshen
Welly

Posted on January 9, 2021

Join Our Newsletter. No Spam, Only the good stuff.

Sign up to receive the latest update from our blog.

Related