Registration Form In React With Validations

In this article, we will learn how to make a registration form with validation.

First, open react project and install react-hook-form for validation

npm install react-hook-form

then import this package and their method in our file

import { useForm } from "react-hook-form";
const { register, handleSubmit, formState: { errors } } = useForm();

take input filed for form like first name, last name, email, password…

For validation using useForm hook show error message

<div className="row my-3">
 <div className="col-3">
  <label for="fname">First Name : </label>
 </div>
 <div className="col-9">
  <input type="text"{...register("firstName", { required: true })} placeholder="Your First Name.." />
  {errors.firstName && <p className="error">Please enter valid First Name !</p>}
 </div>
</div>

My file look like

import './App.css';
import { useForm } from "react-hook-form";

function App() {
  const { register, handleSubmit, formState: { errors } } = useForm();
  const onSubmit = (e) => {
    alert("Register Successfully !")
  };

  return (
    <>
      <div className="container w-25 p-3 background mt-5">
        <h3 className='text-center'>Registration Form</h3>
        <form onSubmit={handleSubmit(onSubmit)}>
          <div className="row my-3">
            <div className="col-3">
              <label for="fname">First Name : </label>
            </div>
            <div className="col-9">
              <input type="text"{...register("firstName", { required: true })} placeholder="Your First Name.." />
              {errors.firstName && <p className="error">Please enter valid First Name !</p>}
            </div>
          </div>
          <div className="row">
            <div className="col-3">
              <label for="lname">Last Name : </label>
            </div>
            <div className="col-9">
              <input type="text" {...register("lastName", { required: true })} placeholder="Your Last Name.." />
              {errors.lastName && <p className="error">Please enter valid Last Name !</p>}
            </div>
          </div>
          <div className="row my-3">
            <div className="col-3">
              <label for="email">Email : </label>
            </div>
            <div className="col-9">
              <input type="email"{...register("email", { required: true, pattern: /^[a-zA-Z0-9]+@[a-zA-Z0-9]+\.[A-Za-z]+$/ })} placeholder="Your email.." />
              {errors.email && <p className="error">Please enter valid Email !</p>}
            </div>
          </div>
          <div className="row">
            <div className="col-3">
              <label for="password">Password : </label>
            </div>
            <div className="col-9">
              <input type="password" {...register("password", { required: true, pattern: /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{8,32}$/ })} placeholder="Your password.." />
              {errors.password && <p className="error">Please enter valid Password !</p>}
            </div>
          </div>
          <div className='mt-3'>
            <button type='submit' className='btn btn-outline-success'>Submit</button>
          </div>
        </form>
      </div>
    </>
  );
}

export default App;

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