jogilvyt

import { useState, useEffect } from "react";

function App() {
  const key = "count";

  const [count, setCount] = useState(() => {
    const persistedValue = window.localStorage.getItem(key);
    return persistedValue !== null ? JSON.parse(persistedValue) : 0;
  });

grncdr

BinaryMuse

import express from "express";

/**
 * Takes a route handling function and returns a function
 * that wraps it after first checking that the strings in
 * `reserved` are not part of `req.body`. Used for ensuring
 * create and update requests do not overwrite server-generated
 * values.
 */
function checkReservedParams(routeHandler, ...reserved) {