React Hook Form

Npm hook form

import React from 'react';import { useForm } from 'react-hook-form'; function App() {  const { register, handleSubmit, errors } = useForm(); // initialise the hook  const onSubmit = (data) => {    console.log(data);  };   return (    <form onSubmit={handleSubmit(onSubmit)}>      <input name="firstname" ref={register} /> {/* register an input */}            <input name="lastname" ref={register({ required: true })} />      {errors.lastname && 'Last name is required.'}            <input name="age" ref={register({ pattern: /\d+/ })} />      {errors.age && 'Please enter number for age.'}            <input type="submit" />    </form>  );}

Source: npmjs.com

React Hook Form

import React from 'react';
import ReactDOM from 'react-dom';
import { connect } from "react-redux";
import useForm from 'react-hook-form';

function SampleForm() {
  const { register, handleSubmit } = useForm();
  const onSubmit = data => {
    alert(JSON.stringify(data));
  };

  return (
    <div className="App">
      <form onSubmit={handleSubmit(onSubmit)}>
        <div>
          <label htmlFor="firstName">First Name</label>
          <input name="firstName" placeholder="bill" ref={register} />
        </div>

        <div>
          <label htmlFor="lastName">Last Name</label>
          <input name="lastName" placeholder="luo" ref={register} />
        </div>

        <div>
          <label htmlFor="email">Email</label>
          <input name="email" placeholder="bluebill1049@hotmail.com" type="email" ref={register} />
        </div>
        <button type="submit">Submit</button>
      </form>
    </div>
  );
}

class Sample extends Component {
  constructor(props) {
    super(props);
  }

  render() {
    return <SampleForm />;
  }
}

export default connect()(Sample);

const rootElement = document.getElementById('root');
ReactDOM.render(<Sample />, rootElement);

Source: stackoverflow.com

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