React Base Fiddle (JSX)

Starting point for creating JSFiddles with React.

HTML

<script src="https://unpkg.com/react@16/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
<!--ahmeturganci-->
<div id="container">
    <!-- This element's contents will be replaced with your component. -->
</div>

SCSS

body {
  font-family: Helvetica;
  font-size: 14px;
}

.container {
  margin-top: 120px;
  text-align: center;
}

p {
  margin-top: 30px;
  margin-bottom: 30px;
}

$tooltip-color: rgba(0, 0, 0, 0.7);
$tooltip-text-color: #fff;

.tooltip {
  position: relative;
}

.tooltip-trigger {
  display: inline-block;
  text-decoration: underline;
}

.tooltip-bubble {
  min-width: 120px;
  max-width: 210px;
  position: absolute;
  z-index: 10;
  &::after {
    content: "";
    position: absolute;
  }
}

.tooltip-top {
  bottom: 100%;
  left: 50%;
  padding-bottom: 9px;
  transform: translateX(-50%);

  &::after {
    border-left: 9px solid transparent;
    border-right: 9px solid transparent;
    border-top: 9px solid $tooltip-color;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
  }
}

.tooltip-bottom {
  top: 100%;
  left: 50%;
  padding-top: 9px;
  transform: translateX(-50%);

  &::after {
    border-left: 9px solid transparent;
    border-right: 9px solid transparent;
    border-bottom: 9px solid $tooltip-color;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
  }
}

.tooltip-left {
  top: 50%;
  right: 100%;
  padding-right: 9px;
  transform: translateY(-50%);

  &::after {
    border-left: 9px solid $tooltip-color;
    border-top: 9px solid transparent;
    border-bottom: 9px solid transparent;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
  }
}

.tooltip-right {
  top: 50%;
  left: 100%;
  padding-left: 9px;
  transform: translateY(-50%);

  &::after {
    border-right: 9px solid $tooltip-color;
    border-top: 9px solid transparent;
    border-bottom: 9px solid transparent;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
  }
}

.tooltip-message {
  background: $tooltip-color;
  border-radius: 3px;
  color: $tooltip-text-color;
  font-size: 0.75rem;
  line-height: 1.4;
  padding: 0.75em;
  text-align: center;
}

Babel + JSX

class Tooltip extends React.Component {
  constructor(props) {
    super(props)

    this.state = {
      displayTooltip: false
    }
    this.hideTooltip = this.hideTooltip.bind(this)
    this.showTooltip = this.showTooltip.bind(this)
  }
  
  hideTooltip () {
    this.setState({displayTooltip: false})
    
  }
  showTooltip () {
    this.setState({displayTooltip: true})
  }
  
  render() {
    let message = this.props.message
    let position = this.props.position
    return (
      <span className='tooltip'
          onMouseLeave={this.hideTooltip}
        >
        {this.state.displayTooltip &&
        <div className={`tooltip-bubble tooltip-${position}`}>
          <div className='tooltip-message'>{message}</div>
        </div>
        }
        <span 
          className='tooltip-trigger'
          onMouseOver={this.showTooltip}
          >
          {this.props.children}
        </span>
      </span>
    )
  }
}
class Hello extends React.Component {
constructor(props) {
    super(props);
    this.state = {
    };
  }
  
 render() {
    const data =[{"name":"test1","tooltip":"AAAAAAAAA"},{"name":"test2","tooltip":"BBBBBB"}];
    return (
      <div className='container'>
      
      {data.map(function(d, id){
      return (
      <li key={id}>{d.name} <Tooltip message={d.tooltip} position={'top'}>{d.tooltip}</Tooltip></li>
      )
       })}
      </div>
      
      
    );
  }
}

ReactDOM.render(
  <Hello />,
  document.getElementById('container')
);