create a component in react to submit a registration form using react-final-form in typescript

To create a component in React to submit a registration form using React-Final-Form in TypeScript, follow these steps:

1. Install the required dependencies by running the following command in your terminal:

   index.ts
   npm install react-final-form final-form typescript @types/react-final-form @types/final-form
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2. Create a new file RegistrationForm.tsx and import necessary dependencies:

   import React, { FunctionComponent } from 'react';
   import { Form, Field } from 'react-final-form';
   import { Button, TextField } from '@material-ui/core';
   import { makeStyles, createStyles } from '@material-ui/core/styles';
   
   const useStyles = makeStyles(() =>
     createStyles({
       root: {
         display: 'flex',
         flexDirection: 'column',
         alignItems: 'center',
       },
       textField: {
         marginBottom: '10px',
       },
       submitButton: {
         marginTop: '10px',
       },
     })
   );
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3. Define the props for the component:

   type RegistrationFormProps = {
     onSubmit: (values: RegistrationFormValues) => void;
   };
   
   type RegistrationFormValues = {
     firstName: string;
     lastName: string;
     email: string;
     password: string;
     confirmPassword: string;
   };
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4. Create the component and the form:

   const RegistrationForm: FunctionComponent<RegistrationFormProps> = ({ onSubmit }) => {
     const classes = useStyles();
   
     const validate = (values: RegistrationFormValues) => {
       const errors: RegistrationFormValues = {};
   
       if (!values.firstName) {
         errors.firstName = 'Required';
       }
   
       if (!values.lastName) {
         errors.lastName = 'Required';
       }
   
       if (!values.email) {
         errors.email = 'Required';
       }
   
       if (!values.password) {
         errors.password = 'Required';
       }
   
       if (!values.confirmPassword) {
         errors.confirmPassword = 'Required';
       }
   
       if (values.password !== values.confirmPassword) {
         errors.confirmPassword = 'Passwords do not match';
       }
   
       return errors;
     };
   
     const handleSubmit = (values: RegistrationFormValues) => {
       onSubmit(values);
     };
   
     return (
       <Form
         onSubmit={handleSubmit}
         validate={validate}
         render={({ handleSubmit }) => (
           <form onSubmit={handleSubmit} className={classes.root}>
             <Field name="firstName">
               {({ input, meta }) => (
                 <TextField
                   {...input}
                   label="First Name"
                   variant="outlined"
                   className={classes.textField}
                   error={meta.touched && meta.error}
                 />
               )}
             </Field>
             ...
           </form>
         )}
       />
     );
   };
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5. Use the component in your application:

   const handleRegistration = (values: RegistrationFormValues) => {
     console.log(values);
   };
   
   const App: FunctionComponent = () => {
     return <RegistrationForm onSubmit={handleRegistration} />;
   };
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That's it! You now have a component in React that submits a registration form using React-Final-Form in TypeScript.