const block = document.querySelector('.block')

    let interval

    let count = 0

    

    block.addEventListener('mousedown', event => {

      console.log('зажали')

      interval = setInterval(() => {

        count++

        console.log(count)

      }, 50)

    })



    block.addEventListener('mouseup', event => {

      console.log('отпустили')

      clearInterval(interval)

    })