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import React, { useState } from 'react';
import { useForm, ValidationMode } from 'react-hook-form';
import { useParams } from 'react-router-dom';
let renderCounter = 0;
const Basic: React.FC = () => {
const { mode } = useParams();
const [data, setData] = React.useState({});
const {
register,
handleSubmit,
formState: { errors },
reset,
} = useForm<{
firstName: string;
lastName: string;
min: string;
max: string;
minDate: string;
maxDate: string;
minLength: string;
minRequiredLength: string;
selectNumber: string;
pattern: string;
radio: string;
checkbox: string;
checkboxArray: string[];
multiple: string;
validate: string;
nestItem: {
nest1: string;
};
arrayItem: { test1: string; test2: string }[];
}>({
mode: mode as keyof ValidationMode,
});
const [onInvalidCalledTimes, setOnInvalidCalledTimes] = useState(0);
const onInvalid = () => setOnInvalidCalledTimes((prevCount) => prevCount + 1);
renderCounter++;
return (
<form
onSubmit={handleSubmit((data) => {
setData(data);
}, onInvalid)}
>
<input
placeholder="nestItem.nest1"
{...register('nestItem.nest1', { required: true })}
/>
{errors.nestItem?.nest1 && <p>nest 1 error</p>}
<input
placeholder="arrayItem[0].test1"
{...register('arrayItem.0.test1', { required: true })}
/>
{errors.arrayItem?.[0]?.test1 && <p>array item 1 error</p>}
<input
{...register('firstName', { required: true })}
placeholder="firstName"
/>
{errors.firstName && <p>firstName error</p>}
<input
{...register('lastName', { required: true, maxLength: 5 })}
placeholder="lastName"
/>
{errors.lastName && <p>lastName error</p>}
<input
type="number"
{...register('min', { min: 10 })}
placeholder="min"
/>
{errors.min && <p>min error</p>}
<input
type="number"
{...register('max', { max: 20 })}
placeholder="max"
/>
{errors.max && <p>max error</p>}
<input
type="date"
{...register('minDate', { min: '2019-08-01' })}
placeholder="minDate"
/>
{errors.minDate && <p>minDate error</p>}
<input
type="date"
{...register('maxDate', { max: '2019-08-01' })}
placeholder="maxDate"
/>
{errors.maxDate && <p>maxDate error</p>}
<input
{...register('minLength', { minLength: 2 })}
placeholder="minLength"
/>
{errors.minLength && <p>minLength error</p>}
<input
{...register('minRequiredLength', { minLength: 2, required: true })}
placeholder="minRequiredLength"
/>
{errors.minRequiredLength && <p>minRequiredLength error</p>}
<select {...register('selectNumber', { required: true })}>
<option value="">Select</option>
<option value={'1'}>1</option>
<option value={'2'}>2</option>
</select>
{errors.selectNumber && <p>selectNumber error</p>}
<input
{...register('pattern', { pattern: /\d+/ })}
placeholder="pattern"
/>
{errors.pattern && <p>pattern error</p>}
Radio1
<input type="radio" {...register('radio')} value="1" />
Radio2
<input type="radio" value="2" {...register('radio')} />
Radio3
<input
type="radio"
value="3"
{...register('radio', { required: true })}
/>
{errors.radio && <p>radio error</p>}
<input type="checkbox" {...register('checkbox', { required: true })} />
{errors.checkbox && <p>checkbox error</p>}
<input
type="checkbox"
value="1"
{...register('checkboxArray', { required: true })}
/>
<input
type="checkbox"
value="2"
{...register('checkboxArray', { required: true })}
/>
<input
type="checkbox"
value="3"
{...register('checkboxArray', { required: true })}
/>
{errors.checkboxArray && <p>checkboxArray error</p>}
<select multiple {...register('multiple', { required: true })}>
<option value="optionA">optionA</option>
<option value="optionB">optionB</option>
</select>
{errors.multiple && <p>multiple error</p>}
<input
type="validate"
placeholder="validate"
{...register('validate', {
validate: (value) => value === 'test',
})}
/>
{errors.validate && <p>validate error</p>}
<button id="submit">Submit</button>
<button type="button" id="resetForm" onClick={() => reset()}>
Reset
</button>
<div id="renderCount">{renderCounter}</div>
<div id="on-invalid-called-times">
onInvalid callback called {onInvalidCalledTimes} times
</div>
<pre>{JSON.stringify(data)}</pre>
</form>
);
};
export default Basic;
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