App.render.js

render() {
    const items = [1, 2, 3, 4, 5].map((id, i) => {
      return (
        <div key={id} onClick={() => this.handleClick(i)}>
          <Child id={id} isClicked={this.state.clicked[i]} />
        </div>
      );
    });

    return (
      <div>
        <div>{items}</div>
      </div>
    );
}