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@hookform/devtools

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@hookform/devtools

React Hook Form dev tool to help debugging forms

  • 4.3.1
  • latest
  • Source
  • npm
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Version published
Weekly downloads
278K
decreased by-8.63%
Maintainers
3
Weekly downloads
 
Created

What is @hookform/devtools?

@hookform/devtools is a development tool for React Hook Form, which provides a visual interface to debug and inspect forms created with React Hook Form. It helps developers to see the form state, errors, and other useful information in real-time.

What are @hookform/devtools's main functionalities?

Visual Form State Inspection

This feature allows developers to visually inspect the form state, including values, errors, and touched fields. The DevTool component is integrated into the form and provides a real-time view of the form's state.

import { DevTool } from '@hookform/devtools';
import { useForm } from 'react-hook-form';

function MyForm() {
  const { control, handleSubmit } = useForm();
  const onSubmit = data => console.log(data);

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <input name="firstName" ref={control.register} />
      <input name="lastName" ref={control.register} />
      <button type="submit">Submit</button>
      <DevTool control={control} />
    </form>
  );
}

Error Debugging

This feature helps in debugging form errors by providing a visual representation of the errors in the form. The DevTool component shows the errors in real-time, making it easier to identify and fix issues.

import { DevTool } from '@hookform/devtools';
import { useForm } from 'react-hook-form';

function MyForm() {
  const { control, handleSubmit, errors } = useForm();
  const onSubmit = data => console.log(data);

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <input name="firstName" ref={control.register({ required: true })} />
      {errors.firstName && <span>This field is required</span>}
      <input name="lastName" ref={control.register({ required: true })} />
      {errors.lastName && <span>This field is required</span>}
      <button type="submit">Submit</button>
      <DevTool control={control} />
    </form>
  );
}

Real-time Form Updates

This feature allows developers to see real-time updates of the form state as users interact with the form. The DevTool component provides a live view of the form's state, making it easier to track changes and debug issues.

import { DevTool } from '@hookform/devtools';
import { useForm } from 'react-hook-form';

function MyForm() {
  const { control, handleSubmit, watch } = useForm();
  const onSubmit = data => console.log(data);
  const firstName = watch('firstName');

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <input name="firstName" ref={control.register} />
      <input name="lastName" ref={control.register} />
      <p>First Name: {firstName}</p>
      <button type="submit">Submit</button>
      <DevTool control={control} />
    </form>
  );
}

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Package last updated on 06 Mar 2023

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