React components make inheritance through Compositon - reactjs

Question

i dont understand how to make inheritance make through Compositon
for example we have a simple Clock component:
class Clock extends React.Component {
constructor(props) {
super(props);
this.state = {date: new Date()};
}
componentDidMount() {
this.timerID = setInterval(
() => this.tick(),
1000
);
}
componentWillUnmount() {
clearInterval(this.timerID);
}
tick() {
this.setState({
date: new Date()
});
}
render() {
return (
<div>
<h1>Hello, world!</h1>
<h2>It is {this.state.date.toLocaleTimeString()}.</h2>
</div>
);
}
}
and then we want to make another Clock Component HappyClock and it have same logic but different render method:
class HappyClock extends Clock {
constructor(props) {
super(props);
}
render() {
return (
<div>
<h1>Hello, Happy world!</h1>
<h2>It is Happy {this.state.date.toLocaleTimeString()} Time.</h2>
</div>
);
}
}
how i can do it through composition if we want to have many different Clocks and same logic

Answer 1

You can create pure components which renders what you already have in your render methods.
For example:
class ClockDisplay extends React.Component {
constructor(props) {
super(props);
}
render() {
return (
<div>
<h1>{this.props.greeting}</h1>
<h2>{this.props.displayText}</h2>
</div>
);
}
}
Then you can use this component in the Clock component.