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Apr 21, 2025 · 1 min read · The useRef hook is used to persist values across component re-renders. It is used for DOM manipulation. useRef is the midway between variables and state values. Unlike variables, useRef is persistent across re-renders. Syntax:- const myRef = useRef(i...
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Apr 21, 2025 · 2 min read · useCallback hook is used for performance optimization and to cache something. When do we use useCallback? It is used to freeze a function reference. See, whenever a component renders, all the functions of the component are created.Therefore, when a c...
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Apr 21, 2025 · 2 min read · For a long time, useMemo had been a mystery to me. Now that I understood it, I thought of documenting everything the way I understand it so that other fellow developers may also benefit. What is useMemo used for? useMemo is used to avoid running a re...
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Dec 13, 2022 · 2 min read · What is JavaScript? JavaScript gives life to a website. It is because of JavaScript that we as users can fill out names in an online form, filter dresses by popularity on an e-commerce website, and listen to our favorite music on Spotify. JavaScript ...
MMohd commentedSep 21, 2022 · 2 min read · Selecting the perfect unit for your CSS code can be daunting. Here, is a basic explanation of the most used units and which ones to go for your styling needs. Units are broadly classified into two categories:- Absolute units Relative units Confused...
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