While doing work in frontend development, you may have come across useMemo. For those unfamiliar with it, we will explain how to use useMemo in React and also the most important/prominent use cases. What is useMemo? useMemo is a great built-in hook that can help with the performance of y...
React.js is a popular JavaScript library for building user interfaces, and with its powerful feature set, it has become a go-to choice for developers around the world. One of the reasons React.js is so powerful is its ability to efficiently manage sta
In this post, I'm going to describe how and when to use the useMemo() React hook. 1. useMemo() hook useMemo() is a built-in React hook that accepts 2 arguments — a function compute that computes a result, and the depedencies array: const memoizedResult = useMemo(compute, dependenci...
Find out what the useMemo React hook is useful for, and how to work with it!Check out my React hooks introduction first, if you’re new to them.One React hook I sometimes use is useMemo.import React, { useMemo } from 'react'
Explore this blog and see how and when to use React.useMemo() hook to improve the performance of React components.
After fixing these referential inequalities, thememoHOC eliminated the re-rendering of all but the edited row. The React profiler now showed the table rendered in 10ms, a 20X improvement. Refactoring touseMemo¶ To use thememoHOC, I had to extract out a separate component for the sole purpose...
React.useMemo As an alternative to this, you can wrap the object inReact.useMemo(), which will memoize the variable and not create a new object. constdata=React.useMemo(()=>({test:'data',}),[]); The second parameter ofuseMemois an array with the dependencies of the variable. If one...
How to use custom hook to expose state, actions and state getters. const useModel = () => { const [state, dispatch] = useReducer(reducer, initState, initFunc); return { state, actions: useMemo(() => mapDispatchToActions(dispatch), [dispatch]), getters: useMemo(() => mapStateToGetters...
The Props in React.js are used to pass data from a parent component to a child component as immutable parameters and facilitate the flow of data in a React application.
React is a popular JavaScript framework for creating front-end applications, such as user interfaces that allow users to interact with programs. Originally c…