Understanding how the useEffect Hook works is one of the most important concepts for mastering React today. If you have been working with React for several years, it is especially crucial to understand how working with useEffect differs from working with the lifecycle methods of class-based components. In fact, it is a wholesale shift in mindset! By Sebastian Weber.
Fully understanding effects is a complex issue. As Dan Abramov of the React team stated, you might have to unlearn some things to fully grasp effects.
Source: https://blog.logrocket.com/guide-to-react-useeffect-hook/ With useEffect, you invoke side effects from within functional components, which is an important concept to understand in the React Hooks era. Working with the side effects invoked by the useEffect Hook may seem cumbersome at first, but you’ll eventually learn everything makes a lot of sense.
The article main points are:
- A whole new mental model: The core concepts of useEffect
- The key concepts of using effects
- Always use useEffect for asynchronous tasks
- Use multiple effects to separate concerns
- When are effects executed within the component lifecycle?
- The useEffect control flow at a glance
- How to execute side effects with useEffect
… and more. understanding the underlying design concepts and best practices of the useEffect Hook is a key skill to master if you wish to become a next-level React developer. Good read!
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