The Browser’s Main Thread Is Expensive | kciter.so
What comes to mind when you hear “frontend optimization”? For most of us it’s things like reducing network requests, shrinking the bundle,…
Technical Documentation
Summary
This guide explains how to identify and remove unnecessary use of the useEffect hook in React applications. It emphasizes that effects should be reserved for synchronizing with external systems rather than transforming data or handling user-driven events.
Highlights
- Effects act as an 'escape hatch' to synchronize components with external systems like the DOM or network.
- Avoid using Effects to transform data for rendering; instead, perform these calculations at the top level of the component to prevent extra render passes.
- User-triggered actions, such as API calls following a button click, should be handled in event handlers rather than Effects.
- Reducing unnecessary Effects makes code easier to follow, faster to execute, and less prone to errors.
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Context
Audience
Software Developers
DomainWeb Development
Formatlong-form article
Accessfree online
Source Overview
The library for web and native user interfaces
Topics
Related
React HooksState ManagementFrontend DevelopmentJavaScript
