zmp-react/esm/shared/watch-prop.js

Build full featured iOS & Android apps using ZMP & React

import { useRef } from 'react';
import { useIsomorphicLayoutEffect } from './use-isomorphic-layout-effect';
export var watchProp = function watchProp(value, callback) {
  var valueRef = useRef(value);
  useIsomorphicLayoutEffect(function () {
    if (value !== valueRef.current && callback) {
      callback(value, valueRef.current);
    }

    valueRef.current = value;
  }, [value]);
};