Tailwindcss manual dark mode

sourse : https://the-best.shahriyar.dev/p/5d5effc6-e23b-4e0c-96b8-3ca1ce6b772c

Config:
To enable the manual dark mode feature in your tailwindcss website first add darkMode: 'class' in your tailwind.config.js file

module.exports = {
darkMode: 'class',
...
}


Hook:
Then we have to create a custom hook for getting the current theme and toggling the theme.

`import { useEffect, useState } from "react"

const themes = {
dark: 'light',
light: 'dark'
}

const useTheme = () => {
const [theme, setTheme] = useState('dark')

const toggleTheme = () => {
const _theme = themes[theme]
localStorage.setItem('theme', _theme)
updateTheme(_theme)
}

const updateTheme = (name) => {
setTheme(name)
document.querySelector('html')
?.classList.remove(themes[name])

document.querySelector('html')
  ?.classList.add(name)

}
useEffect(() => {
const _theme = localStorage.getItem('theme') || 'dark'
updateTheme(_theme)
}, [])

return { theme, toggleTheme }
}

export default useTheme;
`

Import and use:
Finally, we can import the useTheme hook in any of our components and bind the toggleTheme function with a button or any element. Whenever we call the toggleTheme function it will change the website's theme to the opposite.

`function ThemeButton() {
const { toggleTheme } = useTheme()

return (
    <button onClick={toggleTheme}>Change Theme</button>
)

}`