Incorrect way of passing params in URL
Proper URL Parameter Handling in React Router When working with React Router, there are specific patterns you should follow for passing and accessing URL parameters correctly. Here’s how to handle….
Tag: React
Using wrong path in component
In React Router, the <Route> component is used to define a path and the component to render when that path is matched in the browser’s URL. The path prop is….
Forgetting to memoize expensive functions using useMemo
In React, performance optimization is crucial for building efficient applications, especially when dealing with expensive computations or functions. The useMemo hook is used to memoize values or function results so….
Accessing stale state inside useEffect
When working with React’s useEffect hook, it’s important to be aware that state updates are asynchronous. This means that if you directly reference state values inside a useEffect hook, you….
Using useEffect without cleanup function for subscriptions
In React, the useEffect hook is used for managing side effects like data fetching, subscriptions, and manual DOM manipulations. When working with subscriptions (e.g., WebSockets, event listeners, or external data….
Incorrect dependency array in useEffect, causing unexpected behavior
Mastering useEffect Dependency Arrays The dependency array in useEffect is crucial for controlling when your effects run. Getting it wrong can lead to infinite loops, stale data, or effects that….
Using useState without initializing it properly
Proper Initialization of useState in React A common React mistake is not properly initializing state when using the useState hook, which can lead to undefined values and runtime errors. The….
Updating state without wrapping inside a function in useState
Proper State Updates with useState in React When working with React’s useState hook, it’s important to understand how to properly update state to avoid stale state issues and ensure reliable….
Forgetting dependency array in useEffect, causing infinite calls
Managing Dependency Arrays in useEffect to Prevent Infinite Loops A common mistake with React’s useEffect hook is forgetting or incorrectly specifying the dependency array, which can lead to infinite re-renders….
Using hooks in class components
Using Hooks in Class Components: Understanding the Limitations and Alternatives React Hooks are a powerful feature introduced in React 16.8, but they come with an important restriction: hooks only work….