Listening to window events without cleaning them up
A particularly insidious type of memory leak occurs when you add event listeners to the window object but fail to remove them when your React component unmounts. Here’s what you….
Tag: Component Unmount
Forgetting to remove timers (setInterval) on unmount
Forgetting to clear timers (like setInterval) when a component unmounts is a common source of memory leaks in React applications. Here’s how to properly handle timers to avoid these issues:….
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….
Forgetting to remove timers (setInterval) on unmount
Forgetting to Remove Timers on Unmount in React The Memory Leak Problem A common React mistake is creating timers with setInterval but forgetting to clean them up when components unmount:….
Using useEffect without handling async cleanup properly
Proper Async Cleanup in useEffect A common React anti-pattern is not properly handling cleanup for asynchronous operations in useEffect, which can lead to memory leaks and state updates on unmounted….
Updating state after component unmounts – Can’t perform a React state update on an unmounted component
When you try to update the state of a React component after it has unmounted, you’ll encounter the error: “Can’t perform a React state update on an unmounted component.” This….