Reusable form library in reactjs

To create a reusable form library in React, you can follow these steps:

1. Create a new npm package using npm init or yarn init and give it a descriptive name.
2. Install the necessary dependencies, such as React and the form validation library of your choice (e.g. formik or react-hook-form).
3. Design the structure of your form components. You can create a base form component that handles the overall layout and validation logic, and then create specific form fields (e.g. text inputs, checkboxes, etc.) that can be composed within the base form component.
4. Write the code for your form components, making sure to follow best practices for reusable component design, such as using proper prop types and providing sensible default props.
5. Test your form library thoroughly to ensure that it is working as expected.
6. Publish your form library to npm or a private package registry so that it can be easily installed and used in other projects.

Here is an example of a basic reusable form component in React:

import React from 'react';
import { useForm } from 'react-hook-form';

const MyForm = ({ onSubmit }) => {
  const { handleSubmit, register, errors } = useForm();

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <input name="name" ref={register({ required: true })} />
      {errors.name && 'Name is required'}

      <input type="submit" />
    </form>
  );
};

export default MyForm;

This form component uses the react-hook-form library to handle form validation and submission. It includes an input field for the user's name, which is marked as required using the required validation rule. If the user tries to submit the form without entering a name, an error message will be displayed.

You can then use this form component in another project by installing it from npm and importing it:

import MyForm from 'my-form-library';

const App = () => {
  const onSubmit = data => {
    console.log(data);
  };
  return <MyForm onSubmit={onSubmit} />;
};

I hope this helps! Let me know if you have any questions or need further clarification.