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Javascript 2021-11-22 08:56:13
hide component blur react hooks
const React,{ useState, useMemo } = React const usToggleOnFocus = (initialState = false) => { const [show, toggle] = useState(initialState); const eventHandlers = useMemo(() => ({ onFocus: () => toggle(true), onBlur: () => togg... Add solution -
Javascript 2021-09-30 06:21:04
use callback vs use memo
// They both take a function and an array of dependencies: useCallback(() => {···}, [dependency1, dependency2]); useMemo(() => {···}, [dependency1, dependency2]); // So what is the difference? // useCall... Add solution -
Javascript 2021-09-15 07:34:03
useMemo
/* Pass a “create” function and an array of dependencies. useMemo will only recompute the memoized value when one of the dependencies has changed. This optimization helps to avoid expensive calculations on every render. */ const memoizedVal... Add solution
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