react.js

let _slides = [{
  imageUrl: "image.jpg",
  caption: "This is image"
}, {
  imageUrl: "image.jpg",
  caption: "This is image"
}];

class App extends React.Component {
  render() {
    return <SlideShow slides={ _slides } />
  }
}

class SlideShow extends React.Component {
  constructor() {
    super()
    this.state = { activeIndex: 0 };
  }
  jumpToSlide(index) {
    this.setState({ activeIndex: index });
  }
  render() {
    return (
      <div className="slideshow">
        <ul className="slideshow-slides">
          {
            this.props.slides.map((slide, index) => (
              <li className={ classNames({ active: index == this.state.activeIndex }) }>
                <figure>
                  <img src={ slide.imageUrl } />
                  { slide.caption ? <figcaption>{ slide.caption }</figcaption> : null }
                </figure>
              </li>
            ))
          }
        </ul>
        <ul className="slideshow-dots">
          {
            this.props.slides.map((slide, index) => (
              <li className={ (index == this.state.activeIndex) ? 'active': '' }>
                <a onClick={ (event)=> this.jumpToSlide(index) }>{ index + 1 }</a>
              </li>
            ))
          }
        </ul>
      </div>
    );
  }
}