File size: 2,740 Bytes
1e92f2d |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 |
import React from 'react';
import { useForm, useFieldArray } from 'react-hook-form';
import { useParams } from 'react-router-dom';
let renderCount = 0;
type FormInputs = {
data: { name: string }[];
};
const WatchUseFieldArray: React.FC = () => {
const { mode } = useParams();
const { control, handleSubmit, reset, watch, register } = useForm<FormInputs>(
{
...(mode === 'default'
? {
defaultValues: {
data: [{ name: 'test' }, { name: 'test1' }, { name: 'test2' }],
},
}
: {}),
mode: mode === 'formState' ? 'onChange' : 'onSubmit',
},
);
const { fields, append, prepend, swap, move, insert, remove, update } =
useFieldArray({
control,
name: 'data',
});
const onSubmit = () => {};
const watchAll = watch('data') || [];
React.useEffect(() => {
setTimeout(() => {
if (mode === 'asyncReset') {
reset({
data: [{ name: 'test' }, { name: 'test1' }, { name: 'test2' }],
});
}
}, 10);
}, [reset, mode]);
renderCount++;
return (
<form onSubmit={handleSubmit(onSubmit)}>
<ul>
{fields.map((data, index) => (
<li key={data.id}>
<input
id={`field${index}`}
data-order={index}
{...register(`data.${index}.name` as const)}
/>
<button id={`delete${index}`} onClick={() => remove(index)}>
Delete
</button>
</li>
))}
</ul>
<button
id="append"
type="button"
onClick={() => append({ name: renderCount.toString() })}
>
append
</button>
<button
id="prepend"
type="button"
onClick={() => prepend({ name: renderCount.toString() })}
>
prepend
</button>
<button
id="update"
type="button"
onClick={() => update(3, { name: 'updated value' })}
>
append
</button>
<button id="swap" onClick={() => swap(1, 2)} type="button">
swap
</button>
<button id="move" onClick={() => move(2, 0)} type="button">
move
</button>
<button
id="insert"
type="button"
onClick={() => insert(1, { name: renderCount.toString() })}
>
insert
</button>
<button id="remove" type="button" onClick={() => remove(1)}>
remove
</button>
<button id="removeAll" type="button" onClick={() => remove()}>
remove all
</button>
<div id="renderCount">{renderCount}</div>
<div id="result">{JSON.stringify(watchAll)}</div>
</form>
);
};
export default WatchUseFieldArray;
|