React Hooks 是一组允许你在函数组件中添加状态和其他 React 功能的函数。重要的是,Hooks 只能在函数组件或自定义 Hook 函数内部调用。这意味着你不能在类组件或顶层(全局作用域)代码中调用 Hooks。 2. 指出问题中的错误用法:在顶层调用useState 在你的问题中,你提到在顶层调用了 useState。这是不正确的用法,因为 H
When Hooks are called in invalid places, you get this error: “react hooks must be called in a react function component or a custom react hook function”. This ESLint error exists as a safeguard to prevent Hooks from being used in ways that can cause unexpected behavior a...
1.eslint去掉注释报错:// eslint-disable-next-line react-hooks/rules-of-hooks 在使用reacthook时会遇到一些问题,就是在使用hook的一些api时就会出现如下所示报错,使用vscode的自动修复就是加上注释,但是每用一次就加一次注释非常麻烦 问题是:使用组件和props编译报错 错误信息如下 React Hook "useEffect" is cal...
To solve the error "React Hook 'useState' is called in function that is neither a React function component nor a custom React Hook function", uppercase the first letter of the function name, or prefix the function name with use, e.g. useCounter to make it a component or a custom hook...
React Hook “useState“ is called in function “example“ which is neither a React function component or,程序员大本营,技术文章内容聚合第一站。
component or a custom React Hook function.const[count, setCount] =useState(0);// ⛔️ React Hook "useEffect" cannot be called in a class component.// React Hooks must be called in a React function component or a custom React Hook function.useEffect(() =>{console.log('hello world')...
React Hook "useState" cannot be called in a class component. // React Hooks must be called in a React function component or a custom React Hook function. const [count, setCount] = useState(0); // React Hook "useEffect" cannot be called in a class component. // React Hooks must be ...
In the code above, we declared a function confirm() and a dialog component (Material-UI) in the useConfirm hook and returned them as an array. We can use the hook like this: functionApp(){const[Dialog, confirmDelete] =useConfirm('Are you sure?','Are you sure you want to delete user...
custom hookis a JavaScript function that has the ability to call other hooks. The idea behind custom hooks is to extract component logic to reusable functions. Often times as we build out React applications, we end up writing almost the same exact codes in two or more different components. ...
That setup function is pretty handy. Seems like a good opportunity for an abstraction. Well, we already have one! It’s called React Hooks Testing Library. Let’s swap our setup function for the renderHook function from @testing-library/react-hooks. ...