使用React-hook-form的useFieldArray点击append怎么会出现空字段？

Question

Whenever I click on the append button, the generated field value printed as a [object object] but I want to get a blank field. I want to output like this: "fieldName": ["value1","value2"...n] . In this code, I get the output as I like, but every time I have to remove the [object obejct] that is printed in the appended field.

code link: https://codesandbox.io/s/practical-star-jif19c?file=/src/index.js:162-177

Answer 1

Since your array contains only origin names and not objects of origin you should put "" inside append function not {} object.

<Button
    variant="contained"
    component="label"
    type="button"
    onClick={() => append('')}
>
    Add Items
</Button>