modules/hooks/useLocalStorage.tsx


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import React from "react";

/**
 * https://usehooks.com/useLocalStorage/
 */
export function useLocalStorage<T>(
  key: string,
  initialValue: T
): [T, (value: T | ((val: T) => T)) => void] {
  // State to store our value
  // Pass initial state function to useState so logic is only executed once
  const [storedValue, setStoredValue] = React.useState<T>(() => {
    // try {
    // // Get from local storage by key
    // const item = window.localStorage.getItem(key);
    // // Parse stored json or if none return initialValue
    // return item ? JSON.parse(item) : initialValue;
    // } catch (error) {
    // If error also return initialValue
    return initialValue;
    // }
  });

  React.useEffect(() => {
    // Get from local storage by key
    const item = window.localStorage.getItem(key);
    // Parse stored json or if none return initialValue
    if (item) setStoredValue(JSON.parse(item));
  }, []);

  // Return a wrapped version of useState's setter function that ...
  // ... persists the new value to localStorage.
  const setValue = (value: T | ((val: T) => T)) => {
    try {
      // Allow value to be a function so we have same API as useState
      const valueToStore =
        value instanceof Function ? value(storedValue) : value;

      // Save state
      setStoredValue(valueToStore);

      // Save to local storage
      window.localStorage.setItem(key, JSON.stringify(valueToStore));
    } catch (error) {}
  };

  return [storedValue, setValue];
}