Technologies Experiences Contribute

Technologies Experiences Contribute

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useEffect

1. Discuss useEffect hook

Level: Expert | Frequency: High

2. What is an external system with which useEffect allows syncronisation?

Level: Expert | Frequency: High

3. Discuss how setup and cleanup function is called in useEffect hook?

Level: Expert | Frequency: High

4. When we should avoid useEffect?

Level: Expert | Frequency: High

5. Why fetching data inside effect is not prescribed?

Level: Expert | Frequency: High

6. What are reactive values and what to be careful about with dependencies of useEffect?

Level: Expert | Frequency: High

7. Explain how useEffect can be used to replicate the functionality of component lifecycle methods.

Level: Expert | Frequency: High

8. Explain all dependency array scenarios in the useEffect hook

Level: Expert | Frequency: High

All Topics

JSXVirtual DOMReconciliationState and PropsComponentsClass ComponentsFunction ComponentsLifecycle functionsCode SharingHooksuseStateuseReduceruseMemouseContextuseCallbackuseEffectCustom HooksNew HooksHOCRefsData SharingEventsContext APIReduxRouterCSR-SSRReact APIsPerformance OptimisationReactDOMReact APIsStrict Mode