rafaelgandi

import React from "react";

export default function useSpecialEffect(
    callback: (prevRef: any) => any,
    updatables: any = {} // Passing false here means the effect will only run once. Like passing [] to useEffect()
): void {
    const prevRef = React.useRef<any>({});
    const renderCountRef = React.useRef<number>(0);

    prevRef.current.update = (propertyString: string, value: any) => {

rafaelgandi

const [someValue1, setSomeValue1] = useState(null);
const [someValue2, setSomeValue2] = useState(false);
const anotherValueThatCanChange = "some other value";
const [someValue0, setSomeValue0] = useState(true); // Some state that we don't necessarily want to track changes


// This hook will run on every render... similar to useEffect(()=>{})
useSpecialEffect((prev) => {
        if (prev.hasChanged({someValue1}, {anotherValueThatCanChange})) {
                // Do stuff if someValue1 or anotherValueThatCanChange is updated

rafaelgandi

// Code has been moved to: https://github.com/rafaelgandi/WidgetMarkup-Scriptable