Shadcn Hooks

useLatest

A hook to get the latest value of a variable

Installation

npx shadcn@latest add "https://shadcn-hooks.vercel.app/r/use-latest.json"
pnpm dlx shadcn@latest add "https://shadcn-hooks.vercel.app/r/use-latest.json"
yarn dlx shadcn@latest add "https://shadcn-hooks.vercel.app/r/use-latest.json"
bun x shadcn@latest add "https://shadcn-hooks.vercel.app/r/use-latest.json"

Copy and paste the following code into your project.

use-isomorphic-layout-effect.ts
import { useEffect, useLayoutEffect } from 'react'
import { isBrowser } from '@/registry/lib/is-browser'

/**
 * Custom hook that uses either `useLayoutEffect` or `useEffect` based on the environment (client-side or server-side).
 * @param {Function} effect - The effect function to be executed.
 * @param {Array<any>} [dependencies] - An array of dependencies for the effect (optional).
 * @public
 * @see [Documentation](https://usehooks-ts.com/react-hook/use-isomorphic-layout-effect)
 * @example
 * ```tsx
 * useIsomorphicLayoutEffect(() => {
 *   // Code to be executed during the layout phase on the client side
 * }, [dependency1, dependency2]);
 * ```
 */
export const useIsomorphicLayoutEffect = isBrowser ? useLayoutEffect : useEffect

use-latest.ts
import { useRef } from 'react'
import { useIsomorphicLayoutEffect } from '@/registry/hooks/use-isomorphic-layout-effect'

export function useLatest<T>(value: T) {
  const ref = useRef(value)

  useIsomorphicLayoutEffect(() => {
    ref.current = value
  })

  return ref
}

API

/**
 * A hook to get the latest value of a variable
 * @param value - The value to get the latest value of
 * @returns The latest value of the variable
 */
export function useLatest<T>(value: T): RefObject<T>

Credits

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