text: import { useEffect, useRef } from 'react';
  /**
   * Store the last of some value. Tracked via a `Ref` only updating it
   * after the component renders.
   *
   * Helpful if you need to compare a prop value to it's previous value during render.
   *
   * ```ts
   * function Component(props) {
   *   const lastProps = usePrevious(props)
   *
   *   if (lastProps.foo !== props.foo)
   *     resetValueFromProps(props.foo)
   * }
   * ```
   *
   * @param value the value to track
   */
  
  export default function usePrevious(value) {
    var ref = useRef(null);
    useEffect(function () {
      ref.current = value;
    });
    return ref.current;
  }