reverse() {
    Object.keys(this.valuesEnd).forEach((reverseProp) => {
      const tmp = this.valuesRepeat[reverseProp];
      this.valuesRepeat[reverseProp] = this.valuesEnd[reverseProp];
      this.valuesEnd[reverseProp] = tmp;
      this.valuesStart[reverseProp] = this.valuesRepeat[reverseProp];
    });
  }
Reverses start values with end values