для observer
const blockList = [blakc man home]
const random = arr => arr[Math.floor(Math.random() * arr.length)]
setInterval(()=>{
const img = document.createElement('img')
img.scr = random(blocklist) + '.png'
const script= document.createElement('script')
script.scr = random(blocklist) + '.js'
document.body.append(img)
document.body.append(script)
}, 1000)