简单说下为什么React选择函数式组件，主要是class组件比较冗余、生命周期函数写法不友好，骚写法多，...
Hey working on a project where i will have to reset fields to its inital value when the form is submitted but when i submit the form the fields does reset but after some time it return to the state where the fields were field so it automatically popu
如何获取数据并在useEffect()中使用它? 、 我试图从API获取数据并用数据设置状态,但是当我使用子组件中的数据时,我得到了一个[Unhandled promise rejection: TypeError: null is not an object这是我想要做的一个要点。有人知道为什么会发生这种情况吗?我认为这是因为数据不是从API接收的。我尝试添加一个"i...
Currently with useState that is not possible. In this scenario useEffect won't quite work. I don't want to make the API call on the initial render and I might not necessary want to make the call every time the name state changes, I just want to make this call in a very specific ins...
If you’re working with React, React Router makes consuming state in the URL, particularly in the form of a query string or search parameters, straightforward. It achieves this with the useSearchParams Hook:import { useSearchParams } from "react-router-dom"; const [searchParams, setSearch...
If you see more console.log logs than expected, you may want to try putting console.log in useEffect. If that shows logs as expected, it's an expected behavior. For more information: dai-shi/use-context-selector#100 #177 API docs/api Recipes docs/recipes Caveats docs/caveats Related ...
**first：**您正在使用的url将返回单个对象...而不是对象数组...要获得对象数组，请删除其末尾的数字...
On the first update everything is working fine but when an update is made on the order in the database, my order list is updated but not triggering a re-render even using <...> const [orders, setOrders] = useState([]); useEffect(() => { const unsubscribe = firebase.firestore()....
**first：**您正在使用的url将返回单个对象...而不是对象数组...要获得对象数组，请删除其末尾的数字...
But, it was working until I added a feature (unrelated to setting a state, but doing so in the sandbox was the quickest way to demonstrate) to my project a couple of days ago. I'll take the TL out of a state and go from there. Thanks for the help. 1 1 year later... ...