Brown Markup Library

import { useState, useCallback } from 'react';

export default function useToggle(initialValue = false) {
  const [value, setValue] = React.useState<boolean>(initialValue);
  const toggle = useCallback(() => {
    setValue((v: boolean) => !v);
  }, []);
  return [value, toggle];
}

import { useState, useCallback } from 'react';

export default function useToggle(initialValue = false) {
  const [value, setValue] = React.useState(initialValue);
  const toggle = React.useCallback(() => {
    setValue((v) => !v);
  }, []);
  return [value, toggle];
}