Which React hook is used to handle side effects in a functional component?AuseState()BuseContext()CuseReducer()DuseEffect()
Question
Which React hook is used to handle side effects in a functional component?AuseState()BuseContext()CuseReducer()DuseEffect()
Solution
The React hook used to handle side effects in a functional component is D) useEffect().
Here's a step-by-step explanation:
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In React, hooks are functions that let you "hook into" React state and lifecycle features from function components.
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The useState() hook lets you add React state to function components.
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The useContext() hook is used to create global state for the entire app and avoid prop drilling.
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The useReducer() hook is usually preferable to useState when you have complex state logic that involves multiple sub-values or when the next state depends on the previous one.
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The useEffect() hook lets you perform side effects in function components. Side effects are basically anything that interacts with the world outside of the component (like data fetching, subscriptions, timers, logging, etc).
So, the correct answer is D) useEffect().
Similar Questions
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Hooks were introduced in React 16.8 and let you use state, context, etc. with functional components.Are there any places in the code where the hooks CANNOT be called? Select all that apply.Choose as many as you likeloopsconditionshigher-level hooksnested functionstop level of the functional component
The useEffect cleanup is a function in the useEffect Hook that allows us to tidy up our code before our component unmounts. When our code runs and reruns for every render, useEffect also cleans up after itself using the cleanup function. Which of the foloowing is the correct Pseudo code for it?AuseEffect(() => { //effect //cleanup }, [input])BuseEffect(() => { // effect }, [cleanup])CuseEffect(() => { effect return () => { cleanup } }, [input])DNone of the above
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