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import React, { useState } from 'react';
import ReactDOM from 'react-dom';
import { useForm } from 'react-hook-form';
function createArrayWithNumbers(length) {
return Array.from({ length }, (_, i) => i);
}
export default function App() {
const {
register,
handleSubmit,
formState: { errors },
} = useForm();
const [size, setSize] = useState(1);
const onSubmit = (data) => {
alert(JSON.stringify(data));
};
console.log(errors);
return (
<div className="App">
<form onSubmit={handleSubmit(onSubmit)}>
{createArrayWithNumbers(size).map((number) => {
return (
<div key={number}>
<div>
<label htmlFor={`firstName.${number}`}>First Name</label>
<input
id={`firstName.${number}`}
placeholder="first name"
{...register(`firstName.${number}`, { required: true })}
/>
</div>
<div>
<label htmlFor={`lastName.${number}`}>Last Name</label>
<input
id={`firstName.${number}`}
placeholder="last name"
{...register(`lastName.${number}`, { required: true })}
/>
</div>
<div>
<label htmlFor={`email.${number}`}>Email</label>
<input
id={`email.${number}`}
placeholder="email"
{...register(`email.${number}`, { required: true })}
/>
</div>
<hr />
</div>
);
})}
<button type="button" onClick={() => setSize(size + 1)}>
Add Person
</button>
<br />
<div style={{ color: 'red' }}>
{Object.keys(errors).length > 0 &&
'There are errors, check your console.'}
</div>
<button type="submit">Submit</button>
</form>
</div>
);
}
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