/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
<script src="http://fb.me/react-with-addons-0.14.0.js"></script>
<script src="http://fb.me/react-dom-0.14.0.js"></script>
<!-- <script src="https://npmcdn.com/expect/umd/expect.min.js"></script> -->
  <script src="https://wzrd.in/standalone/expect@latest"></script>
  <script src="https://wzrd.in/standalone/deep-freeze@latest"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/redux/3.3.0/redux.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-redux/4.0.0/react-redux.js"></script>
  <meta charset="utf-8">
  <title>React Hello World w/ JSBin</title>
<style id="jsbin-css">
* {
  font-family: sans-serif
}
</style>
</head>
<body>
  <div id="root"></div>
<script id="jsbin-javascript">
// Reducer Composition Pattern
// One Reducer called by another
'use strict';

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; }; })();

var _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; desc = parent = getter = undefined; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; continue _function; } } else if ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i]; return arr2; } else { return Array.from(arr); } }

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

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; }

var todo = function todo(state, action) {
  switch (action.type) {
    case 'ADD_TODO':
      return {
        id: action.id,
        text: action.text,
        completed: false
      };
    case 'TOGGLE_TODO':
      if (state.id !== action.id) {
        return state;
      }
      return _extends({}, state, {
        completed: !state.completed
      });
    default:
      return state;
  }
};

// Reducer
var todos = function todos(state, action) {
  if (state === undefined) state = [];

  switch (action.type) {
    case 'ADD_TODO':
      return [].concat(_toConsumableArray(state), [todo(undefined, action)]);
    case 'TOGGLE_TODO':
      return state.map(function (t) {
        return todo(t, action);
      });
    default:
      return state;
  }
};

var visibilityFilter = function visibilityFilter(state, action) {
  if (state === undefined) state = 'SHOW_ALL';

  switch (action.type) {
    case 'SET_VISIBILITY_FILTER':
      return action.filter;
    default:
      return state;
  }
};

// Combine Reducers implement the same
// type of structure as implemented
// in the commented code below

// Reimplementation of combineReducers
// const combineReducers = (reducers) => {
//   return (state = {}, action) => {
//     return Object.keys(reducers).reduce(
//       (nextState, key) => {
//         nextState[key] = reducers[key](
//           state[key],
//           action[key]
//         );
//         return nextState;
//       },
//       {}
//     );
//   };
// };

var _Redux = Redux;
var combineReducers = _Redux.combineReducers;

var todoApp = combineReducers({
  todos: todos,
  visibilityFilter: visibilityFilter
});

// const todoApp = (state = {}, action) => {
//   return {
//     todos: todos(
//       state.todos,
//       action
//     ),
//     visibilityFilter: visibilityFilter(
//       state.visibilityFilter,
//       action
//     )
//   };
// };

var _Redux2 = Redux;
var createStore = _Redux2.createStore;

var store = createStore(todoApp);

var _React = React;
var Component = _React.Component;

var Link = function Link(_ref) {
  var active = _ref.active;
  var currentFilter = _ref.currentFilter;
  var children = _ref.children;
  var onClick = _ref.onClick;

  if (active) {
    return React.createElement(
      'span',
      null,
      children
    );
  }
  return React.createElement(
    'a',
    { href: '#',
      onClick: function (e) {
        e.preventDefault();
        onClick();
      }
    },
    children
  );
};

var FilterLink = (function (_Component) {
  _inherits(FilterLink, _Component);

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

    _get(Object.getPrototypeOf(FilterLink.prototype), 'constructor', this).apply(this, arguments);
  }

  _createClass(FilterLink, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      var _this = this;

      this.unsubscribe = store.subscribe(function () {
        return _this.forceUpdate();
      });
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.unsubscribe();
    }
  }, {
    key: 'render',
    value: function render() {
      var props = this.props;
      var state = store.getState();

      return React.createElement(
        Link,
        {
          active: props.filter === state.visibilityFilter,
          onClick: function () {
            return store.dispatch({
              type: 'SET_VISIBILITY_FILTER',
              filter: props.filter
            });
          }
        },
        props.children
      );
    }
  }]);

  return FilterLink;
})(Component);

var getVisibleTodos = function getVisibleTodos(todos, filter) {
  switch (filter) {
    case 'SHOW_ALL':
      return todos;
    case 'SHOW_ACTIVE':
      return todos.filter(function (t) {
        return !t.completed;
      });
    case 'SHOW_COMPLETED':
      return todos.filter(function (t) {
        return t.completed;
      });
  }
};

var Todo = function Todo(_ref2) {
  var onClick = _ref2.onClick;
  var completed = _ref2.completed;
  var text = _ref2.text;
  return React.createElement(
    'li',
    {
      key: todo.id,
      onClick: onClick,
      style: {
        textDecoration: completed ? 'line-through' : 'none'
      } },
    text
  );
};

var TodoList = function TodoList(_ref3) {
  var todos = _ref3.todos;
  var onTodoClick = _ref3.onTodoClick;
  return React.createElement(
    'ul',
    null,
    todos.map(function (todo) {
      return React.createElement(Todo, _extends({
        key: todo.id
      }, todo, {
        onClick: function () {
          return onTodoClick(todo.id);
        }
      }));
    })
  );
};

var VisibleTodoList = (function (_Component2) {
  _inherits(VisibleTodoList, _Component2);

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

    _get(Object.getPrototypeOf(VisibleTodoList.prototype), 'constructor', this).apply(this, arguments);
  }

  _createClass(VisibleTodoList, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      var _this2 = this;

      this.unsubscribe = store.subscribe(function () {
        return _this2.forceUpdate();
      });
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.unsubscribe();
    }
  }, {
    key: 'render',
    value: function render() {
      var props = this.props;
      var state = store.getState();

      return React.createElement(TodoList, {
        todos: getVisibleTodos(state.todos, state.visibilityFilter),
        onTodoClick: function (id) {
          return store.dispatch({
            type: 'TOGGLE_TODO',
            id: id
          });
        }
      });
    }
  }]);

  return VisibleTodoList;
})(Component);

var AddTodo = function AddTodo() {
  var input = undefined;

  return React.createElement(
    'div',
    null,
    React.createElement('input', { ref: function (node) {
        input = node;
      } }),
    React.createElement(
      'button',
      { onClick: function () {
          store.dispatch({
            type: 'ADD_TODO',
            text: input.value,
            id: nextTodoId++
          });
          input.value = '';
        } },
      'Add Todo'
    )
  );
};

var Footer = function Footer() {
  return React.createElement(
    'p',
    null,
    'Show:',
    ' ',
    React.createElement(
      FilterLink,
      {
        filter: 'SHOW_ALL'
      },
      'All'
    ),
    ' ',
    React.createElement(
      FilterLink,
      {
        filter: 'SHOW_ACTIVE'
      },
      'Active'
    ),
    ' ',
    React.createElement(
      FilterLink,
      {
        filter: 'SHOW_COMPLETED'
      },
      'Completed'
    ),
    ' '
  );
};

var nextTodoId = 0;
var TodoApp = function TodoApp() {
  return React.createElement(
    'div',
    null,
    React.createElement(AddTodo, null),
    React.createElement(VisibleTodoList, null),
    React.createElement(Footer, null)
  );
};

ReactDOM.render(React.createElement(TodoApp, null), document.getElementById('root'));

// Tests
var testAddTodo = function testAddTodo() {
  var stateBefore = [];
  var action = {
    type: 'ADD_TODO',
    id: 0,
    text: 'Learn Redux'
  };
  var stateAfter = [{
    id: 0,
    text: 'Learn Redux',
    completed: false
  }];

  expect(todos(stateBefore, action)).toEqual(stateAfter);
};

var testToggleTodo = function testToggleTodo() {
  var stateBefore = [{
    id: 0,
    text: 'Learn Redux',
    completed: false
  }, {
    id: 1,
    text: 'Go shopping',
    completed: false
  }];
  var action = {
    type: 'TOGGLE_TODO',
    id: 1
  };
  var stateAfter = [{
    id: 0,
    text: 'Learn Redux',
    completed: false
  }, {
    id: 1,
    text: 'Go shopping',
    completed: true
  }];
};

testAddTodo();
testToggleTodo();
console.log('All tests passed.');
</script>

<script id="jsbin-source-html" type="text/html"><!DOCTYPE html>
<html>
<head>
<script src="//fb.me/react-with-addons-0.14.0.js"><\/script>
<script src="//fb.me/react-dom-0.14.0.js"><\/script>
<\!-- <script src="https://npmcdn.com/expect/umd/expect.min.js"><\/script> -->
  <script src="https://wzrd.in/standalone/expect@latest"><\/script>
  <script src="https://wzrd.in/standalone/deep-freeze@latest"><\/script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/redux/3.3.0/redux.js"><\/script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-redux/4.0.0/react-redux.js"><\/script>
  <meta charset="utf-8">
  <title>React Hello World w/ JSBin</title>
</head>
<body>
  <div id="root"></div>
</body>
</html></script>

<script id="jsbin-source-css" type="text/css">* {
  font-family: sans-serif
}</script>

<script id="jsbin-source-javascript" type="text/javascript">// Reducer Composition Pattern
// One Reducer called by another
const todo = (state, action) => {
  switch (action.type) {
    case 'ADD_TODO':
      return {
          id: action.id,
          text: action.text,
          completed: false
      };
    case 'TOGGLE_TODO':
      if (state.id !== action.id) {
          return state;
      }
      return {
        ...state,
        completed: !state.completed
      };
    default:
      return state;
  }
};

// Reducer
const todos = (state =[], action) => {
  switch (action.type) {
    case 'ADD_TODO':
      return [
        ...state,
        todo(undefined, action)
      ];
    case 'TOGGLE_TODO':
      return state.map(t =>
        todo(t, action)
      );
    default:
      return state;
  }
};

const visibilityFilter = (
  state = 'SHOW_ALL',
  action
) => {
  switch (action.type) {
    case 'SET_VISIBILITY_FILTER':
      return action.filter;
    default:
      return state;
  }
};

// Combine Reducers implement the same
// type of structure as implemented
// in the commented code below


// Reimplementation of combineReducers
// const combineReducers = (reducers) => {
//   return (state = {}, action) => {
//     return Object.keys(reducers).reduce(
//       (nextState, key) => {
//         nextState[key] = reducers[key](
//           state[key],
//           action[key]
//         );
//         return nextState;
//       },
//       {}
//     );
//   };
// };

const { combineReducers } = Redux;

const todoApp = combineReducers({
  todos,
  visibilityFilter
});

// const todoApp = (state = {}, action) => {
//   return {
//     todos: todos(
//       state.todos,
//       action
//     ),
//     visibilityFilter: visibilityFilter(
//       state.visibilityFilter,
//       action
//     )
//   };
// };

const { createStore } = Redux;
const store = createStore(todoApp);

const { Component } = React;

const Link = ({
  active,
  currentFilter,
  children,
  onClick
}) => {
  if (active) {
    return <span>{children}</span>;
  }
  return (
  <a href='#'
     onClick={e => {
        e.preventDefault();
        onClick();
    }}
   >
     {children}
   </a>
  );
};

class FilterLink extends Component {
  componentDidMount() {
    this.unsubscribe = store.subscribe(() =>
      this.forceUpdate()
    );
  }

  componentWillUnmount() {
    this.unsubscribe();
  }

  render() {
    const props = this.props;
    const state = store.getState();

    return (
    <Link
      active={
        props.filter === state.visibilityFilter
      }
        onClick={() =>
          store.dispatch({
            type:'SET_VISIBILITY_FILTER',
            filter: props.filter
           })
        }
      >
        {props.children}
      </Link>
    );
  }
}


const getVisibleTodos = (
  todos,
  filter
) => {
  switch (filter) {
    case 'SHOW_ALL':
      return todos;
    case 'SHOW_ACTIVE':
      return todos.filter(
        t => !t.completed
      );
    case 'SHOW_COMPLETED':
      return todos.filter(
        t => t.completed
      );
  }
};

const Todo = ({
  onClick,
  completed,
  text
}) => (
  <li
    key={todo.id}
    onClick={onClick}
   style={{
    textDecoration: completed ? 'line-through': 'none'
   }}>
     {text}
   </li>
);

const TodoList = ({
  todos,
  onTodoClick
}) => (
  <ul>
    {todos.map(todo =>
      <Todo
       key={todo.id}
       {...todo}
       onClick={() => onTodoClick(todo.id)}
      />
    )}
  </ul>
);

class VisibleTodoList extends Component {
  componentDidMount() {
    this.unsubscribe = store.subscribe(() =>
      this.forceUpdate()
    );
  }

  componentWillUnmount() {
    this.unsubscribe();
  }

  render() {
    const props = this.props;
    const state = store.getState();

    return (
      <TodoList
        todos={
          getVisibleTodos(
            state.todos,
            state.visibilityFilter
          )
        }
        onTodoClick={id =>
          store.dispatch({
            type: 'TOGGLE_TODO',
            id
          })
        }
       />
    )
  }
}

const AddTodo = () => {
  let input;

  return (
    <div>
      <input ref={node => {
          input = node;
        }} />
        <button onClick={() => {
          store.dispatch({
            type: 'ADD_TODO',
            text: input.value,
            id: nextTodoId++
          })
          input.value = '';
      }}>
          Add Todo
        </button>
    </div>
  )
}

const Footer = () => {
 return (
   <p>
          Show:
          {' '}
          <FilterLink
            filter='SHOW_ALL'
          >
            All
          </FilterLink>
          {' '}
          <FilterLink
            filter='SHOW_ACTIVE'
          >
            Active
          </FilterLink>
          {' '}
          <FilterLink
            filter='SHOW_COMPLETED'
          >
            Completed
          </FilterLink>
          {' '}
         </p>
 )
}

let nextTodoId = 0;
const TodoApp = () => (
  <div>
    <AddTodo />
    <VisibleTodoList />
    <Footer />
  </div>
);


ReactDOM.render(
  <TodoApp />,
  document.getElementById('root')
);


// Tests
const testAddTodo = () => {
  const stateBefore = [];
  const action = {
    type: 'ADD_TODO',
    id: 0,
    text: 'Learn Redux'
  };
  const stateAfter = [
    {
      id: 0,
      text: 'Learn Redux',
      completed: false
    }
  ];

  expect(
    todos(stateBefore, action)
  ).toEqual(stateAfter);
};

const testToggleTodo = () => {
  const stateBefore = [
    {
      id: 0,
      text: 'Learn Redux',
      completed: false
    },
    {
      id: 1,
      text: 'Go shopping',
      completed: false
    }
  ];
  const action = {
    type: 'TOGGLE_TODO',
    id: 1
  };
  const stateAfter = [
    {
      id: 0,
      text: 'Learn Redux',
      completed: false
    },
    {
      id: 1,
      text: 'Go shopping',
      completed: true
    }
  ];
};

testAddTodo();
testToggleTodo();
console.log('All tests passed.');</script></body>
</html>

## jsbin.bapuda.css
* {
  font-family: sans-serif
}

## jsbin.bapuda.js
// Reducer Composition Pattern
// One Reducer called by another
'use strict';

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; }; })();

var _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; desc = parent = getter = undefined; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; continue _function; } } else if ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i]; return arr2; } else { return Array.from(arr); } }

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

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; }

var todo = function todo(state, action) {
  switch (action.type) {
    case 'ADD_TODO':
      return {
        id: action.id,
        text: action.text,
        completed: false
      };
    case 'TOGGLE_TODO':
      if (state.id !== action.id) {
        return state;
      }
      return _extends({}, state, {
        completed: !state.completed
      });
    default:
      return state;
  }
};

// Reducer
var todos = function todos(state, action) {
  if (state === undefined) state = [];

  switch (action.type) {
    case 'ADD_TODO':
      return [].concat(_toConsumableArray(state), [todo(undefined, action)]);
    case 'TOGGLE_TODO':
      return state.map(function (t) {
        return todo(t, action);
      });
    default:
      return state;
  }
};

var visibilityFilter = function visibilityFilter(state, action) {
  if (state === undefined) state = 'SHOW_ALL';

  switch (action.type) {
    case 'SET_VISIBILITY_FILTER':
      return action.filter;
    default:
      return state;
  }
};

// Combine Reducers implement the same
// type of structure as implemented
// in the commented code below

// Reimplementation of combineReducers
// const combineReducers = (reducers) => {
//   return (state = {}, action) => {
//     return Object.keys(reducers).reduce(
//       (nextState, key) => {
//         nextState[key] = reducers[key](
//           state[key],
//           action[key]
//         );
//         return nextState;
//       },
//       {}
//     );
//   };
// };

var _Redux = Redux;
var combineReducers = _Redux.combineReducers;

var todoApp = combineReducers({
  todos: todos,
  visibilityFilter: visibilityFilter
});

// const todoApp = (state = {}, action) => {
//   return {
//     todos: todos(
//       state.todos,
//       action
//     ),
//     visibilityFilter: visibilityFilter(
//       state.visibilityFilter,
//       action
//     )
//   };
// };

var _Redux2 = Redux;
var createStore = _Redux2.createStore;

var store = createStore(todoApp);

var _React = React;
var Component = _React.Component;

var Link = function Link(_ref) {
  var active = _ref.active;
  var currentFilter = _ref.currentFilter;
  var children = _ref.children;
  var onClick = _ref.onClick;

  if (active) {
    return React.createElement(
      'span',
      null,
      children
    );
  }
  return React.createElement(
    'a',
    { href: '#',
      onClick: function (e) {
        e.preventDefault();
        onClick();
      }
    },
    children
  );
};

var FilterLink = (function (_Component) {
  _inherits(FilterLink, _Component);

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

    _get(Object.getPrototypeOf(FilterLink.prototype), 'constructor', this).apply(this, arguments);
  }

  _createClass(FilterLink, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      var _this = this;

      this.unsubscribe = store.subscribe(function () {
        return _this.forceUpdate();
      });
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.unsubscribe();
    }
  }, {
    key: 'render',
    value: function render() {
      var props = this.props;
      var state = store.getState();

      return React.createElement(
        Link,
        {
          active: props.filter === state.visibilityFilter,
          onClick: function () {
            return store.dispatch({
              type: 'SET_VISIBILITY_FILTER',
              filter: props.filter
            });
          }
        },
        props.children
      );
    }
  }]);

  return FilterLink;
})(Component);

var getVisibleTodos = function getVisibleTodos(todos, filter) {
  switch (filter) {
    case 'SHOW_ALL':
      return todos;
    case 'SHOW_ACTIVE':
      return todos.filter(function (t) {
        return !t.completed;
      });
    case 'SHOW_COMPLETED':
      return todos.filter(function (t) {
        return t.completed;
      });
  }
};

var Todo = function Todo(_ref2) {
  var onClick = _ref2.onClick;
  var completed = _ref2.completed;
  var text = _ref2.text;
  return React.createElement(
    'li',
    {
      key: todo.id,
      onClick: onClick,
      style: {
        textDecoration: completed ? 'line-through' : 'none'
      } },
    text
  );
};

var TodoList = function TodoList(_ref3) {
  var todos = _ref3.todos;
  var onTodoClick = _ref3.onTodoClick;
  return React.createElement(
    'ul',
    null,
    todos.map(function (todo) {
      return React.createElement(Todo, _extends({
        key: todo.id
      }, todo, {
        onClick: function () {
          return onTodoClick(todo.id);
        }
      }));
    })
  );
};

var VisibleTodoList = (function (_Component2) {
  _inherits(VisibleTodoList, _Component2);

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

    _get(Object.getPrototypeOf(VisibleTodoList.prototype), 'constructor', this).apply(this, arguments);
  }

  _createClass(VisibleTodoList, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      var _this2 = this;

      this.unsubscribe = store.subscribe(function () {
        return _this2.forceUpdate();
      });
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.unsubscribe();
    }
  }, {
    key: 'render',
    value: function render() {
      var props = this.props;
      var state = store.getState();

      return React.createElement(TodoList, {
        todos: getVisibleTodos(state.todos, state.visibilityFilter),
        onTodoClick: function (id) {
          return store.dispatch({
            type: 'TOGGLE_TODO',
            id: id
          });
        }
      });
    }
  }]);

  return VisibleTodoList;
})(Component);

var AddTodo = function AddTodo() {
  var input = undefined;

  return React.createElement(
    'div',
    null,
    React.createElement('input', { ref: function (node) {
        input = node;
      } }),
    React.createElement(
      'button',
      { onClick: function () {
          store.dispatch({
            type: 'ADD_TODO',
            text: input.value,
            id: nextTodoId++
          });
          input.value = '';
        } },
      'Add Todo'
    )
  );
};

var Footer = function Footer() {
  return React.createElement(
    'p',
    null,
    'Show:',
    ' ',
    React.createElement(
      FilterLink,
      {
        filter: 'SHOW_ALL'
      },
      'All'
    ),
    ' ',
    React.createElement(
      FilterLink,
      {
        filter: 'SHOW_ACTIVE'
      },
      'Active'
    ),
    ' ',
    React.createElement(
      FilterLink,
      {
        filter: 'SHOW_COMPLETED'
      },
      'Completed'
    ),
    ' '
  );
};

var nextTodoId = 0;
var TodoApp = function TodoApp() {
  return React.createElement(
    'div',
    null,
    React.createElement(AddTodo, null),
    React.createElement(VisibleTodoList, null),
    React.createElement(Footer, null)
  );
};

ReactDOM.render(React.createElement(TodoApp, null), document.getElementById('root'));

// Tests
var testAddTodo = function testAddTodo() {
  var stateBefore = [];
  var action = {
    type: 'ADD_TODO',
    id: 0,
    text: 'Learn Redux'
  };
  var stateAfter = [{
    id: 0,
    text: 'Learn Redux',
    completed: false
  }];

  expect(todos(stateBefore, action)).toEqual(stateAfter);
};

var testToggleTodo = function testToggleTodo() {
  var stateBefore = [{
    id: 0,
    text: 'Learn Redux',
    completed: false
  }, {
    id: 1,
    text: 'Go shopping',
    completed: false
  }];
  var action = {
    type: 'TOGGLE_TODO',
    id: 1
  };
  var stateAfter = [{
    id: 0,
    text: 'Learn Redux',
    completed: false
  }, {
    id: 1,
    text: 'Go shopping',
    completed: true
  }];
};

testAddTodo();
testToggleTodo();
console.log('All tests passed.');
	<!DOCTYPE html>
	<html>
	<head>
	<script src="http://fb.me/react-with-addons-0.14.0.js"></script>
	<script src="http://fb.me/react-dom-0.14.0.js"></script>
	<!-- <script src="https://npmcdn.com/expect/umd/expect.min.js"></script> -->
	<script src="https://wzrd.in/standalone/expect@latest"></script>
	<script src="https://wzrd.in/standalone/deep-freeze@latest"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/redux/3.3.0/redux.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/react-redux/4.0.0/react-redux.js"></script>
	<meta charset="utf-8">
	<title>React Hello World w/ JSBin</title>
	<style id="jsbin-css">
	* {
	font-family: sans-serif
	}
	</style>
	</head>
	<body>
	<div id="root"></div>
	<script id="jsbin-javascript">
	// Reducer Composition Pattern
	// One Reducer called by another
	'use strict';

	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; }; })();

	var _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; desc = parent = getter = undefined; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; continue _function; } } else if ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };

	var _extends = Object.assign \|\| function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

	function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i]; return arr2; } else { return Array.from(arr); } }

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

	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; }

	var todo = function todo(state, action) {
	switch (action.type) {
	case 'ADD_TODO':
	return {
	id: action.id,
	text: action.text,
	completed: false
	};
	case 'TOGGLE_TODO':
	if (state.id !== action.id) {
	return state;
	}
	return _extends({}, state, {
	completed: !state.completed
	});
	default:
	return state;
	}
	};

	// Reducer
	var todos = function todos(state, action) {
	if (state === undefined) state = [];

	switch (action.type) {
	case 'ADD_TODO':
	return [].concat(_toConsumableArray(state), [todo(undefined, action)]);
	case 'TOGGLE_TODO':
	return state.map(function (t) {
	return todo(t, action);
	});
	default:
	return state;
	}
	};

	var visibilityFilter = function visibilityFilter(state, action) {
	if (state === undefined) state = 'SHOW_ALL';

	switch (action.type) {
	case 'SET_VISIBILITY_FILTER':
	return action.filter;
	default:
	return state;
	}
	};

	// Combine Reducers implement the same
	// type of structure as implemented
	// in the commented code below

	// Reimplementation of combineReducers
	// const combineReducers = (reducers) => {
	// return (state = {}, action) => {
	// return Object.keys(reducers).reduce(
	// (nextState, key) => {
	// nextState[key] = reducers[key](
	// state[key],
	// action[key]
	// );
	// return nextState;
	// },
	// {}
	// );
	// };
	// };

	var _Redux = Redux;
	var combineReducers = _Redux.combineReducers;

	var todoApp = combineReducers({
	todos: todos,
	visibilityFilter: visibilityFilter
	});

	// const todoApp = (state = {}, action) => {
	// return {
	// todos: todos(
	// state.todos,
	// action
	// ),
	// visibilityFilter: visibilityFilter(
	// state.visibilityFilter,
	// action
	// )
	// };
	// };

	var _Redux2 = Redux;
	var createStore = _Redux2.createStore;

	var store = createStore(todoApp);

	var _React = React;
	var Component = _React.Component;

	var Link = function Link(_ref) {
	var active = _ref.active;
	var currentFilter = _ref.currentFilter;
	var children = _ref.children;
	var onClick = _ref.onClick;

	if (active) {
	return React.createElement(
	'span',
	null,
	children
	);
	}
	return React.createElement(
	'a',
	{ href: '#',
	onClick: function (e) {
	e.preventDefault();
	onClick();
	}
	},
	children
	);
	};

	var FilterLink = (function (_Component) {
	_inherits(FilterLink, _Component);

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

	_get(Object.getPrototypeOf(FilterLink.prototype), 'constructor', this).apply(this, arguments);
	}

	_createClass(FilterLink, [{
	key: 'componentDidMount',
	value: function componentDidMount() {
	var _this = this;

	this.unsubscribe = store.subscribe(function () {
	return _this.forceUpdate();
	});
	}
	}, {
	key: 'componentWillUnmount',
	value: function componentWillUnmount() {
	this.unsubscribe();
	}
	}, {
	key: 'render',
	value: function render() {
	var props = this.props;
	var state = store.getState();

	return React.createElement(
	Link,
	{
	active: props.filter === state.visibilityFilter,
	onClick: function () {
	return store.dispatch({
	type: 'SET_VISIBILITY_FILTER',
	filter: props.filter
	});
	}
	},
	props.children
	);
	}
	}]);

	return FilterLink;
	})(Component);

	var getVisibleTodos = function getVisibleTodos(todos, filter) {
	switch (filter) {
	case 'SHOW_ALL':
	return todos;
	case 'SHOW_ACTIVE':
	return todos.filter(function (t) {
	return !t.completed;
	});
	case 'SHOW_COMPLETED':
	return todos.filter(function (t) {
	return t.completed;
	});
	}
	};

	var Todo = function Todo(_ref2) {
	var onClick = _ref2.onClick;
	var completed = _ref2.completed;
	var text = _ref2.text;
	return React.createElement(
	'li',
	{
	key: todo.id,
	onClick: onClick,
	style: {
	textDecoration: completed ? 'line-through' : 'none'
	} },
	text
	);
	};

	var TodoList = function TodoList(_ref3) {
	var todos = _ref3.todos;
	var onTodoClick = _ref3.onTodoClick;
	return React.createElement(
	'ul',
	null,
	todos.map(function (todo) {
	return React.createElement(Todo, _extends({
	key: todo.id
	}, todo, {
	onClick: function () {
	return onTodoClick(todo.id);
	}
	}));
	})
	);
	};

	var VisibleTodoList = (function (_Component2) {
	_inherits(VisibleTodoList, _Component2);

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

	_get(Object.getPrototypeOf(VisibleTodoList.prototype), 'constructor', this).apply(this, arguments);
	}

	_createClass(VisibleTodoList, [{
	key: 'componentDidMount',
	value: function componentDidMount() {
	var _this2 = this;

	this.unsubscribe = store.subscribe(function () {
	return _this2.forceUpdate();
	});
	}
	}, {
	key: 'componentWillUnmount',
	value: function componentWillUnmount() {
	this.unsubscribe();
	}
	}, {
	key: 'render',
	value: function render() {
	var props = this.props;
	var state = store.getState();

	return React.createElement(TodoList, {
	todos: getVisibleTodos(state.todos, state.visibilityFilter),
	onTodoClick: function (id) {
	return store.dispatch({
	type: 'TOGGLE_TODO',
	id: id
	});
	}
	});
	}
	}]);

	return VisibleTodoList;
	})(Component);

	var AddTodo = function AddTodo() {
	var input = undefined;

	return React.createElement(
	'div',
	null,
	React.createElement('input', { ref: function (node) {
	input = node;
	} }),
	React.createElement(
	'button',
	{ onClick: function () {
	store.dispatch({
	type: 'ADD_TODO',
	text: input.value,
	id: nextTodoId++
	});
	input.value = '';
	} },
	'Add Todo'
	)
	);
	};

	var Footer = function Footer() {
	return React.createElement(
	'p',
	null,
	'Show:',
	' ',
	React.createElement(
	FilterLink,
	{
	filter: 'SHOW_ALL'
	},
	'All'
	),
	' ',
	React.createElement(
	FilterLink,
	{
	filter: 'SHOW_ACTIVE'
	},
	'Active'
	),
	' ',
	React.createElement(
	FilterLink,
	{
	filter: 'SHOW_COMPLETED'
	},
	'Completed'
	),
	' '
	);
	};

	var nextTodoId = 0;
	var TodoApp = function TodoApp() {
	return React.createElement(
	'div',
	null,
	React.createElement(AddTodo, null),
	React.createElement(VisibleTodoList, null),
	React.createElement(Footer, null)
	);
	};

	ReactDOM.render(React.createElement(TodoApp, null), document.getElementById('root'));

	// Tests
	var testAddTodo = function testAddTodo() {
	var stateBefore = [];
	var action = {
	type: 'ADD_TODO',
	id: 0,
	text: 'Learn Redux'
	};
	var stateAfter = [{
	id: 0,
	text: 'Learn Redux',
	completed: false
	}];

	expect(todos(stateBefore, action)).toEqual(stateAfter);
	};

	var testToggleTodo = function testToggleTodo() {
	var stateBefore = [{
	id: 0,
	text: 'Learn Redux',
	completed: false
	}, {
	id: 1,
	text: 'Go shopping',
	completed: false
	}];
	var action = {
	type: 'TOGGLE_TODO',
	id: 1
	};
	var stateAfter = [{
	id: 0,
	text: 'Learn Redux',
	completed: false
	}, {
	id: 1,
	text: 'Go shopping',
	completed: true
	}];
	};

	testAddTodo();
	testToggleTodo();
	console.log('All tests passed.');
	</script>

	<script id="jsbin-source-html" type="text/html"><!DOCTYPE html>
	<html>
	<head>
	<script src="//fb.me/react-with-addons-0.14.0.js"><\/script>
	<script src="//fb.me/react-dom-0.14.0.js"><\/script>
	<\!-- <script src="https://npmcdn.com/expect/umd/expect.min.js"><\/script> -->
	<script src="https://wzrd.in/standalone/expect@latest"><\/script>
	<script src="https://wzrd.in/standalone/deep-freeze@latest"><\/script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/redux/3.3.0/redux.js"><\/script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/react-redux/4.0.0/react-redux.js"><\/script>
	<meta charset="utf-8">
	<title>React Hello World w/ JSBin</title>
	</head>
	<body>
	<div id="root"></div>
	</body>
	</html></script>

	<script id="jsbin-source-css" type="text/css">* {
	font-family: sans-serif
	}</script>

	<script id="jsbin-source-javascript" type="text/javascript">// Reducer Composition Pattern
	// One Reducer called by another
	const todo = (state, action) => {
	switch (action.type) {
	case 'ADD_TODO':
	return {
	id: action.id,
	text: action.text,
	completed: false
	};
	case 'TOGGLE_TODO':
	if (state.id !== action.id) {
	return state;
	}
	return {
	...state,
	completed: !state.completed
	};
	default:
	return state;
	}
	};

	// Reducer
	const todos = (state =[], action) => {
	switch (action.type) {
	case 'ADD_TODO':
	return [
	...state,
	todo(undefined, action)
	];
	case 'TOGGLE_TODO':
	return state.map(t =>
	todo(t, action)
	);
	default:
	return state;
	}
	};

	const visibilityFilter = (
	state = 'SHOW_ALL',
	action
	) => {
	switch (action.type) {
	case 'SET_VISIBILITY_FILTER':
	return action.filter;
	default:
	return state;
	}
	};

	// Combine Reducers implement the same
	// type of structure as implemented
	// in the commented code below


	// Reimplementation of combineReducers
	// const combineReducers = (reducers) => {
	// return (state = {}, action) => {
	// return Object.keys(reducers).reduce(
	// (nextState, key) => {
	// nextState[key] = reducers[key](
	// state[key],
	// action[key]
	// );
	// return nextState;
	// },
	// {}
	// );
	// };
	// };

	const { combineReducers } = Redux;

	const todoApp = combineReducers({
	todos,
	visibilityFilter
	});

	// const todoApp = (state = {}, action) => {
	// return {
	// todos: todos(
	// state.todos,
	// action
	// ),
	// visibilityFilter: visibilityFilter(
	// state.visibilityFilter,
	// action
	// )
	// };
	// };

	const { createStore } = Redux;
	const store = createStore(todoApp);

	const { Component } = React;

	const Link = ({
	active,
	currentFilter,
	children,
	onClick
	}) => {
	if (active) {
	return <span>{children}</span>;
	}
	return (
	<a href='#'
	onClick={e => {
	e.preventDefault();
	onClick();
	}}
	>
	{children}
	</a>
	);
	};

	class FilterLink extends Component {
	componentDidMount() {
	this.unsubscribe = store.subscribe(() =>
	this.forceUpdate()
	);
	}

	componentWillUnmount() {
	this.unsubscribe();
	}

	render() {
	const props = this.props;
	const state = store.getState();

	return (
	<Link
	active={
	props.filter === state.visibilityFilter
	}
	onClick={() =>
	store.dispatch({
	type:'SET_VISIBILITY_FILTER',
	filter: props.filter
	})
	}
	>
	{props.children}
	</Link>
	);
	}
	}


	const getVisibleTodos = (
	todos,
	filter
	) => {
	switch (filter) {
	case 'SHOW_ALL':
	return todos;
	case 'SHOW_ACTIVE':
	return todos.filter(
	t => !t.completed
	);
	case 'SHOW_COMPLETED':
	return todos.filter(
	t => t.completed
	);
	}
	};

	const Todo = ({
	onClick,
	completed,
	text
	}) => (
	<li
	key={todo.id}
	onClick={onClick}
	style={{
	textDecoration: completed ? 'line-through': 'none'
	}}>
	{text}
	</li>
	);

	const TodoList = ({
	todos,
	onTodoClick
	}) => (
	<ul>
	{todos.map(todo =>
	<Todo
	key={todo.id}
	{...todo}
	onClick={() => onTodoClick(todo.id)}
	/>
	)}
	</ul>
	);

	class VisibleTodoList extends Component {
	componentDidMount() {
	this.unsubscribe = store.subscribe(() =>
	this.forceUpdate()
	);
	}

	componentWillUnmount() {
	this.unsubscribe();
	}

	render() {
	const props = this.props;
	const state = store.getState();

	return (
	<TodoList
	todos={
	getVisibleTodos(
	state.todos,
	state.visibilityFilter
	)
	}
	onTodoClick={id =>
	store.dispatch({
	type: 'TOGGLE_TODO',
	id
	})
	}
	/>
	)
	}
	}

	const AddTodo = () => {
	let input;

	return (
	<div>
	<input ref={node => {
	input = node;
	}} />
	<button onClick={() => {
	store.dispatch({
	type: 'ADD_TODO',
	text: input.value,
	id: nextTodoId++
	})
	input.value = '';
	}}>
	Add Todo
	</button>
	</div>
	)
	}

	const Footer = () => {
	return (
	<p>
	Show:
	{' '}
	<FilterLink
	filter='SHOW_ALL'
	>
	All
	</FilterLink>
	{' '}
	<FilterLink
	filter='SHOW_ACTIVE'
	>
	Active
	</FilterLink>
	{' '}
	<FilterLink
	filter='SHOW_COMPLETED'
	>
	Completed
	</FilterLink>
	{' '}
	</p>
	)
	}

	let nextTodoId = 0;
	const TodoApp = () => (
	<div>
	<AddTodo />
	<VisibleTodoList />
	<Footer />
	</div>
	);


	ReactDOM.render(
	<TodoApp />,
	document.getElementById('root')
	);


	// Tests
	const testAddTodo = () => {
	const stateBefore = [];
	const action = {
	type: 'ADD_TODO',
	id: 0,
	text: 'Learn Redux'
	};
	const stateAfter = [
	{
	id: 0,
	text: 'Learn Redux',
	completed: false
	}
	];

	expect(
	todos(stateBefore, action)
	).toEqual(stateAfter);
	};

	const testToggleTodo = () => {
	const stateBefore = [
	{
	id: 0,
	text: 'Learn Redux',
	completed: false
	},
	{
	id: 1,
	text: 'Go shopping',
	completed: false
	}
	];
	const action = {
	type: 'TOGGLE_TODO',
	id: 1
	};
	const stateAfter = [
	{
	id: 0,
	text: 'Learn Redux',
	completed: false
	},
	{
	id: 1,
	text: 'Go shopping',
	completed: true
	}
	];
	};

	testAddTodo();
	testToggleTodo();
	console.log('All tests passed.');</script></body>
	</html>