useKonamiCode

⬆️⬆️⬇️⬇️⬅️➡️⬅️➡️🅱️🅰️

Use the infamous Konami code with a React hook.

Install

npm install @bitmap/use-konami-code

Usage

For the uninitiated, The Konami Code is one of the most well known video game cheat codes.

The sequence is Up, Up, Down, Down, Left, Right, Left, Right, B, A, Enter.

After entering the code, the hook will run whatever callback function you pass to it.

import React, { useState } from 'react'
import { useKonamiCode } from '@bitmap/use-konami-code'

function SecretComponent() {
  const [cheatCodeActive, setCheatCodeActive] = useState(false)

  useKonamiCode(() => {
    setCheatCodeActive(true)
  })

  if (cheatCodeActive) return (
    <div>It’s a secret to everybody.</div>
  )

  return null
}

Custom cheat code

useKonamiCode takes a second argument, which is an array of keycodeEvent.key strings. This will allow you to to a custom key sequence.

const godMode = 'iddqd'.split('')

useKonamiCode(callback, godMode)