我正在尝试编辑 JSON 班次数据库。我正在使用 React 编写 Javascript。这是我对 PUT 语法的理解:
const editShift = async (changed, id) => {
const res = await fetch(`http://localhost:5000/shifts/${id}`, {
method: 'PUT',
headers: {
'Content-type': 'application/json'
},
body: JSON.stringify(changed)
})
const data = await res.json()
setShifts([...shifts, data])
}
数据.json:
{
"shifts": [
{
"title": "test",
"startDate": "2018-06-25T07:30:00.000Z",
"endDate": "2018-06-25T08:00:00.000Z",
"allDay": false,
"id": 1
},
{
"title": "test2",
"startDate": "2018-06-28T07:30:00.000Z",
"endDate": "2018-06-28T08:00:00.000Z",
"allDay": false,
"id": 2
}
]
}
结果是新班次将仅保留已更改的字段并删除其余字段。任何想法为什么?