📚Cheatsheets

Cheatsheet collection for go, rust and javascript.

React Local Storage

Create hook:

import { useState } from "react";

export default function useLocalStorage(key, defaultValue) {
  const [storedValue, setStoredValue] = useState(() => {
    if (typeof window === "undefined") {
      return defaultValue;
    }
    try {
      const item = window.localStorage.getItem(key);
      return item ? JSON.parse(item) : defaultValue;
    } catch (error) {
      return defaultValue;
    }
  });

  const setValue = (value) => {
    try {
      const valueToStore = value instanceof Function ? value(storedValue) : value;
      setStoredValue(valueToStore);
      if (typeof window !== "undefined") {
        window.localStorage.setItem(key, JSON.stringify(valueToStore));
      }
    } catch (error) {
    }
  };
  return [storedValue, setValue];
}

Usage :

const [name, setName] = useLocalStorage("name", "Bob");