13 lines
231 B
TypeScript
13 lines
231 B
TypeScript
import { useEffect, useRef } from 'react'
|
|
|
|
function usePrevious<T>(value: T): T | undefined {
|
|
const ref = useRef<T>()
|
|
|
|
useEffect(() => {
|
|
ref.current = value
|
|
}, [value])
|
|
|
|
return ref.current
|
|
}
|
|
|
|
export default usePrevious
|