onClick.js

onClick.js

 private onClick(event: React.SyntheticEvent<EventTarget>) {
        const { onCellClick } = this.props;
        const target = event.target as HTMLElement;
        const rowIndex = Number(target.getAttribute('data-row'));
        const colIndex = Number(target.getAttribute('data-column'));
        onCellClick({
            rowIndex,
            colIndex
        });
    }