Javascript function hook logger

fn-hook-logger.js

function logHookFunction(obj, key, hookTime = 5000) {
  if (typeof obj[key] !== "function") {
    console.log("[-] Hook failed! Not a function!")
    return
  }
  obj[`o${key}`] = obj[`o${key}`] || obj[key]
  obj[key] = function(...args) {
    console.log(`[HOOKR] ${key}(${args.join(',')})`)
    return this[`o${key}`](...args)
  }

  console.log(`[+] Hooked "${key}"`)

  setTimeout(() => {
    obj[key] = obj[`o${key}`]
    delete obj[`o${key}`]
    console.log(`[+] UnHooked "${key}"`)
  }, hookTime)
}

// Example: logHookFunction(document.head, "addChild")