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import React from 'react';
import ReactDOM from 'react-dom';
import { useForm } from 'react-hook-form';
const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
export default function App() {
const { register, handleSubmit, errors } = useForm();
const onSubmit = (data) => {
alert(JSON.stringify(data));
};
console.log(errors);
return (
<div className="App">
<form onSubmit={handleSubmit(onSubmit)}>
<div>
<label htmlFor="username">User Name</label>
<input
name="username"
placeholder="Bill"
ref={register({
validate: async (value) => {
await sleep(3000);
return value === 'bill';
},
})}
/>
</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="text"
ref={register}
/>
</div>
<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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