Using hooks inside class components
React Hooks were designed specifically for function components and cannot be used directly inside class components. This is a fundamental constraint of React’s architecture. Here’s what you need to know:….
Tag: custom hooks
Using history.push() in React Router v6 instead of useNavigate()
Using history.push() in React Router v6 In React Router v6, the traditional history.push() approach from v4/v5 has been replaced with the useNavigate() hook. Attempting to use the old history API….
Trying to use useNavigate() outside
Using useNavigate() Outside <BrowserRouter> A common React Router error occurs when trying to use the useNavigate() hook in components that aren’t wrapped in a <BrowserRouter> (or similar router component). This….
Using useReducer but forgetting to return a new state in the reducer function
Forgetting to Return New State in useReducer A common mistake when using useReducer is mutating the existing state or forgetting to return a new state object from the reducer function,….
Forgetting to remove event listeners on unmount
Forgetting to Remove Event Listeners on Unmount in React A common memory leak issue in React occurs when event listeners aren’t properly cleaned up when components unmount. This can lead….
Testing Hooks and Custom Hooks in React
Testing hooks requires different approaches than component testing since hooks can’t be called outside of React components. Here’s a comprehensive guide to effectively testing both built-in and custom hooks. Testing….
Handling Global State with Custom Hooks
Managing global state in React can become challenging as your application grows. While React’s Context API and state management libraries like Redux can handle global state, using custom hooks for….
Writing Asynchronous Hooks with useAsync
Handling asynchronous operations like fetching data, submitting forms, or dealing with side effects in React often involves managing state for loading, success, and error scenarios. Writing a reusable custom hook….
Performance Optimized Custom Hooks
In React, custom hooks allow you to encapsulate reusable logic, making it easier to maintain and share stateful logic between components. However, poorly optimized custom hooks can lead to performance….
Writing Hooks with Abort Controller for Cleanup
In React, handling cleanup of side effects is essential to prevent memory leaks and ensure that resources like network requests, event listeners, or timers are properly cleaned up when a….