index.js

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';

var NoteBox = function (_React$Component) {
  _inherits(NoteBox, _React$Component);

  function NoteBox(props) {
    _classCallCheck(this, NoteBox);

    var _this = _possibleConstructorReturn(this, (NoteBox.__proto__ || Object.getPrototypeOf(NoteBox)).call(this, props));

    _this.state = {
      value: _this.props.value,
      index: _this.props.index
    };
    return _this;
  }

  _createClass(NoteBox, [{
    key: 'render',
    value: function render() {
      return React.createElement(
        'div',
        {
          className: 'square',
          onClick: this.handleClick.bind(this) },
        this.state.value
      );
    }
  }, {
    key: 'handleClick',
    value: function handleClick() {
      return this.setState({
        value: this.props.index
      });
    }
  }]);

  return NoteBox;
}(React.Component);

var GridColumn = function (_React$Component2) {
  _inherits(GridColumn, _React$Component2);

  function GridColumn() {
    _classCallCheck(this, GridColumn);

    return _possibleConstructorReturn(this, (GridColumn.__proto__ || Object.getPrototypeOf(GridColumn)).apply(this, arguments));
  }

  _createClass(GridColumn, [{
    key: 'renderNoteBox',
    value: function renderNoteBox(number) {
      return React.createElement(NoteBox, { index: number });
    }
  }, {
    key: 'render',
    value: function render() {
      return React.createElement(
        'div',
        { className: 'GridColumn' },
        React.createElement(
          'tr',
          null,
          React.createElement(
            'div',
            { 'class': 'trDiv' },
            React.createElement(
              'td',
              null,
              this.renderNoteBox(8)
            ),
            React.createElement(
              'td',
              null,
              this.renderNoteBox(7)
            ),
            React.createElement(
              'td',
              null,
              this.renderNoteBox(6)
            ),
            React.createElement(
              'td',
              null,
              this.renderNoteBox(5)
            ),
            React.createElement(
              'td',
              null,
              this.renderNoteBox(4)
            ),
            React.createElement(
              'td',
              null,
              this.renderNoteBox(3)
            ),
            React.createElement(
              'td',
              null,
              this.renderNoteBox(2)
            ),
            React.createElement(
              'td',
              null,
              this.renderNoteBox(1)
            )
          )
        )
      );
    }
  }]);

  return GridColumn;
}(React.Component);

var Grid = function (_React$Component3) {
  _inherits(Grid, _React$Component3);

  function Grid() {
    _classCallCheck(this, Grid);

    return _possibleConstructorReturn(this, (Grid.__proto__ || Object.getPrototypeOf(Grid)).apply(this, arguments));
  }

  _createClass(Grid, [{
    key: 'render',
    value: function render() {
      return React.createElement(
        'div',
        { className: 'Grid' },
        React.createElement(
          'table',
          null,
          React.createElement(GridColumn, null),
          React.createElement(GridColumn, null),
          React.createElement(GridColumn, null),
          React.createElement(GridColumn, null),
          React.createElement(GridColumn, null),
          React.createElement(GridColumn, null),
          React.createElement(GridColumn, null),
          React.createElement(GridColumn, null)
        )
      );
    }
  }]);

  return Grid;
}(React.Component);

ReactDOM.render(React.createElement(Grid, null), document.getElementById('test'));