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import React, { useEffect } from 'react';
import { useForm } from 'react-hook-form';
let renderCounter = 0;
const SetValueCustomRegister: React.FC = () => {
const {
register,
setValue,
handleSubmit,
formState: { touchedFields, isDirty, errors },
} = useForm<{
firstName: string;
lastName: string;
}>();
useEffect(() => {
register('firstName', { required: true });
register('lastName', { required: true });
}, [register]);
renderCounter++;
console.log(errors);
return (
<form onSubmit={handleSubmit(() => {})}>
<button
id="TriggerDirty"
type="button"
onClick={() => setValue('lastName', 'test', { shouldDirty: true })}
>
TriggerDirty
</button>
<button
id="TriggerNothing"
type="button"
onClick={() => setValue('firstName', '', { shouldDirty: true })}
>
TriggerNothing
</button>
<button
id="WithError"
type="button"
onClick={() =>
setValue('firstName', '', { shouldValidate: true, shouldDirty: true })
}
>
WithError
</button>
<button
id="WithoutError"
type="button"
onClick={() =>
setValue('firstName', 'true', {
shouldValidate: true,
shouldDirty: true,
})
}
>
WithOutError
</button>
<div id="dirty">{isDirty.toString()}</div>
<div id="touched">{Object.keys(touchedFields).map((touch) => touch)}</div>
<div id="renderCount">{renderCounter}</div>
</form>
);
};
export default SetValueCustomRegister;
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