code: function generateNumber(beginValue, endValue, duration, easing, interval){
    verifyParams(duration, interval)
    const count = duration / interval
    const times = endValue - beginValue
    const numbers = generate(easing, count, times).map(number => (number + beginValue).toFixed(4))
    return numbers
  }
docs: generate easing numbers [1,1,1,2,3,4,...]