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useRef Hook in react

DEV Community·Deva I·3 months ago
#g1drkAAm
#dev#useref#button#variable#state#values
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useRef : The useRef Hook allows you to persist values between renders. It can be used to store a mutable value that does not cause a re-render when updated. It can be used to access a DOM element directly. Syntax : import { useRef } from ' react ' ; const myRef = useRef ( initialValue ); Enter fullscreen mode Exit fullscreen mode Important Points : When you call useRef , it returns a plain JavaScript object with a single property called current . The most important useRef is that changing its value does not trigger a component re-render. Example Code : import React from ' react ' import { useState , useRef } from " react " ; function UserRef () { let normalVar = 5 ; const myRef = useRef ( 5 ); const [ count , setCount ] = useState ( 5 ); return ( < div > < p > Normal Variable: { normalVar } </ p > < p > Ref Variable: { myRef .…

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