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import React, { useEffect } from 'react';
import { useForm } from 'react-hook-form';
let renderCounter = 0;
const SetValue: React.FC = () => {
const {
register,
setValue,
handleSubmit,
formState: { errors },
} = useForm<{
firstName: string;
lastName: string;
age: string;
trigger: string;
checkbox: boolean;
checkboxArray: string[];
radio: string;
select: string;
multiple: string[];
array: string[];
object: {
firstName: string;
lastName: string;
middleName: string;
};
nestedValue: string[];
}>();
useEffect(() => {
register('lastName', { required: true });
setValue('firstName', 'wrong', { shouldDirty: true });
setValue('age', '2', { shouldDirty: true });
setValue('trigger', '', { shouldDirty: true, shouldValidate: true });
setValue('checkbox', true, { shouldDirty: true });
setValue('checkboxArray', ['2', '3'], {
shouldDirty: true,
shouldValidate: true,
});
setValue('radio', 'radio', { shouldDirty: true });
setValue('select', 'a', { shouldDirty: true });
setValue('multiple', ['a', 'b'], { shouldDirty: true });
setValue('array', ['array.0', 'array.1', 'array.2'], {
shouldDirty: true,
});
setValue(
'object',
{
firstName: 'firstName',
lastName: 'lastName',
middleName: 'middleName',
},
{ shouldDirty: true },
);
setValue('nestedValue', [], {
shouldValidate: true,
shouldDirty: true,
});
}, [register, setValue]);
renderCounter++;
return (
<form onSubmit={handleSubmit(() => {})}>
<input {...register('firstName')} placeholder="firstName" />
<input {...register('array.0')} placeholder="array[0]" />
<input {...register('array.1')} placeholder="array[1]" />
<input {...register('array.2')} placeholder="array[2]" />
<input {...register('object.firstName')} placeholder="object.firstName" />
<input {...register('object.lastName')} placeholder="object.lastName" />
<input
{...register('object.middleName')}
placeholder="object.middleName"
/>
<input type="number" {...register('age')} placeholder="age" />
<input value="radio" type="radio" {...register('radio')} />
<input type="checkbox" {...register('checkbox')} />
<input type="checkbox" value="1" {...register('checkboxArray')} />
<input type="checkbox" value="2" {...register('checkboxArray')} />
<input type="checkbox" value="3" {...register('checkboxArray')} />
<select {...register('select')}>
<option>Select</option>
<option value="a">a</option>
<option value="b">b</option>
</select>
<select multiple {...register('multiple')}>
<option>Select</option>
<option value="a">a</option>
<option value="b">b</option>
</select>
<input
name="lastName"
placeholder="lastName"
onChange={() => {
setValue('lastName', 'test');
}}
/>
{errors.lastName && <p id="lastName">Last name error</p>}
<input
{...register('trigger', { required: true })}
placeholder="trigger"
/>
{errors.trigger && <p id="trigger">Trigger error</p>}
<input
{...register('nestedValue', { required: 'required' })}
placeholder="nestedValue"
/>
{errors.nestedValue && (
<p id="nestedValue">{errors.nestedValue.message}</p>
)}
<button
type="button"
id="setMultipleValues"
onClick={() => {
setValue(
'object',
{
firstName: 'firstName1',
lastName: 'lastName1',
middleName: 'middleName1',
},
{ shouldDirty: true },
);
setValue('array', ['array[0]1', 'array[1]1', 'array[2]1'], {
shouldDirty: true,
});
setValue('nestedValue', ['a', 'b'], { shouldDirty: true });
}}
>
Set Multiple Values
</button>
<button id="submit">Submit</button>
<div id="renderCount">{renderCounter}</div>
</form>
);
};
export default SetValue;
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