Method previous

types/reactstrap-tests.tsx:4651–4658

()

  }

  previous() {
    if (this.animating) return;
    const nextIndex =
      this.state.activeIndex === 0
        ? this.items.length - 1
        : this.state.activeIndex - 1;
    this.setState({ activeIndex: nextIndex });
  }

  goToIndex(newIndex: number) {
    if (this.animating) return;