hoc

withRouter(withCounter(AnotherHoc))

render props

class Counter extends Component {
  constructor(props) {
    super(props);
    this.state = { count: props.initCounter };
  }
  increase = () => this.setState(prevState => ({ count: prevState.count + 1 }));
  decrease = () => this.setState(prevState => ({ count: prevState.count - 1 }));
  render() {
    const { count } = this.state;
    return (
      <div>
        {this.props.children({
          count,
          increase: this.increase,
          decrease: this.decrease
        })}
      </div>
    );
  }
}
import Counter from "./renderPropCounter";
const CompOne = ({ initCounter }) => (
  <Counter initCounter={initCounter}>
    {({ count, increase }) => (
      <div>
        Count: {count}
        <button onClick={increase}>+</button>
      </div>
    )}
  </Counter>
);

hooks

// count.js
import { useState } from "react";
const useCounter = initCount => {
  const [count, setCount] = useState(initCount);
  return [
    count,
    () => setCount(count => count + 1),
    () => setCount(count => count - 1)
  ];
};
// main.js
import useCounter from "./useCounter";
const CompOne = ({ initCounter }) => {
  const [count, increase] = useCounter(initCounter);
  return (
    <div>
      Count: {count}
      <button onClick={increase}>+</button>
    </div>
  );
};